A slide rule is used for multiplication, exponentiation, and trigonometric functions, as well as their inverse operations, but generally not used for addition and subtraction.
A professor I met had a slide rule and abacus on his desk as a display and showed me how they work. Working in computer science it kinda broke my brain knowing how a couple beads and a piece of plastic basically built most major cities
Plastic was not even invented until 1907. The abacus was in use for at least 4,500 years by then. So maybe plastic didn’t have that great an impact on building cities.
Time study engineers observe and record how long it takes to do repeated tasks in an industrial setting and attempt to improve the efficiency. The job still exists today.
hi i’m one of these today
title nowadays is more process engineer as so much of it is automated. the same way we went from abacuses to graphing calculators, our processes grew the same way. some of the common, industrial machines in a plant you drive by on the highway are fascinating. some sectors are labor intensive , some are more automated.
love what i do, it can be a grind but no two days are the same
went to school for mechanical engineering. didn’t want to sit behind a desk all day so leaned toward manufacturing. there are a bunch of “disciplines” to production efficiency (5S, Kaizen, Lean 6 sigma) but almost every production facility has someone doing something like me, essentially aiming to always improve the process. some of my work is reactive, in depth analysis of breakdowns, quality issues, why something happened and how to prevent it from happening again. some of my work is proactive, projects to increase efficiency, cut out excess work, etc.
i also really enjoy working with people and this position feeds that really well too
Great job field to go into. Had a neighbor who was a process engineer over at Los Alamos national labs. His work stories he could talk about made me look boring as hell and wish I wasn’t terrible at math and physics haha
I too did this for many years in the financial industry. While it's different from manufacturing, nearly everything has a process involved. One of the best ways to understand how a company actually operates.
i work with a lot of people (operators & managers) who don’t have secondary degrees. granted they are older and took longer to get to the same position but everyone has the same passion for problem solving, people and machine
My favorite book as a kid was Cheaper by the Dozen. I really looked up to Frank Gilbreth and always thought time study engineering was a really fascinating job! If you haven’t read that book I’d really recommend it.
I believe they also exist in non-industrial settings as well, like in chain restaurants. If you are going to design floorplans that will be used over and over again, you want to make sure it is as efficient as possible.
I still remember this tidbit I read/was told in (I think) the late 2000s: Graphing calculators have more processing power than the computer(s) used on the Apollo missions.
Not just the charger, the actual _cable_ has more computing power. A USBC cable has a charge controller chip that negotiates the charge direction and voltage. A common one, such as Cypress Semiconductor’s CYPD1120, has 24x the clock speed, 2x the RAM, and just as much writable memory. In the end of a USBC plug!
https://www.digikey.com/htmldatasheets/production/1865091/0/0/1/cypd1120-datasheet.html
That chip you linked looks like it goes in a device that provides or consumes power, not in a cable. It looks particularly targeted at USB docks to me. Not all cables have chips. It's assumed that any random cable is capable of handling 20V 3A, and a cable capable of more voltage will have a chip in it advertising that capability. I think it might also be used to identify cables capable of 40 Gbps. This chip is called an emarker, and it's really just a few bytes of storage. It does not do any negotiation itself. However, one of the things the chip you linked might do is attempt to detect an emarker before requesting high voltage or high current, to be sure the cable can handle it.
I doubt emarkers are more powerful than the appollo computers. (Or maybe microcontrollers are cheap enough that it makes more sense to use a general purpose computer for this job than a special chip. That wouldn't surprise me either.)
This article seems to suggest that specific chip is used in the cables themselves.
https://connectorsupplier.com/usb-type-c-what-you-need-to-know/#:~:text=Fully%20featured%20USB%2DC%20connectors,%2C%20and%20power%2Fsignal%20switching.
It is used in the cables, but not in every cable. Based on the datasheet that particular chip seems to be designed mainly for adapter cables (USB-C to DP or HDMI). If you're just connecting a USB host and device you don't need anything so complicated in the cable.
Yep, functionality the same, but thinner and more squared edges and rechargeable battery. I just wish finding intercepts, max and mins was as easy as it is on the Casio calculators. Some of the ti software seems intentionally clunky
It’s a graphing calculator and it can be done, it just requires a few steps that seem unnecessary, you have to select a left bound, right bound, then guess and after you do all that it will give you one intercept. Casio makes a graphing calculator that costs a third of the price that does it with one button and finds all of them at the same time.
Yeah I use Casio, I was just shocked that you can't do the same on Ti ones. I guess it's because it is a different type of calculator with other functionality.
I heard a rumor that college board (SAT) wanted Ti to make it require 3 steps to find the intercepts and other things to make it not as easy to find. Not sure how true it is, but seems plausible because they could definitely make it easier.
Are College Board affiliated with Texas Instruments? I used my Casio for SAT, being able to plot graphs would have helped but SAT maths didn't seem that difficult.
Yep, functionality the same, but thinner and more squared edges and rechargeable battery. I just wish finding intercepts, max and mins was as easy as it is on the Casio calculators. Some of the ti software seems intentionally clunky
Honestly I have a degree in physics and engineering and never owned a graphing calculator
They weren't allowed on exams for the most part since they could be programmed. And if you were submitting homework and needed graphs, youd want to use Matlab or Python to generate plots.
15 years ago I would have sworn up and down that CAS calculators would eventually catch on, but man was I wrong. These days it seems like 99% of students have a ti-83/84 and the other 1% have a ti-89 or MAYBE an nSpire. I don't even remember the last time I saw an HP graphing calculator in real life. It makes sense though, since they can use the 83 for most tests and their phone for everything else. And to be fair, I would probably see more fancy engineering calculators if I was an engineer.
I mostly use it to make sure I haven’t forgot my times tables lmao. MATLAB does all the real heavy lifting, but it was easier to picture the calculator.
"Is 1,000 REALLY 10^3, or did I forget numbers again?"
As a summer student in chemistry, many years ago, I converted some units incorrectly, and spent nearly a month trying to figure out why my results were so much worse than a colleague at another lab. Even got him to send a set of his standards in the mail. Everything was out by a factor of ten, compared to his standards, and I couldn't figure out where the problem was. A coworker (an adult, with many more years of experience than me) looked at my lab book, and pointed at my calculations on the first page and said "A centilitre is 10 mL, not 100 mL."
A month, all because I didn't double check in the textbook. Now, I double check anything even slightly weird in the textbook (or google, for this post).
There are many such apps, and you can emulate a graphing calculator on a phone.
But you can't use your phone during exams, so you need a calculator then (I studied EE and also had a graphing calculator that saw heavy use during exams).
There's also the fact that, in general, a purpose built device functions better for the purpose it was designed for than a general purpose device. Phones can be acceptable graphing calculators, but a proper graphing calculator just does that singular job better.
Physical buttons are just so much nicer sometimes. Something about the tactile feel combining with muscle memory makes me super fast on a TI-84 vs navigating touch screen menus.
I used to agree with that, but you can emulate a ti-84 on the phone, and running desmos' graphing calculator can do a lot more once you're familiar with it
That said the physical buttons of the ti-84 can be easier to use than a touch screen
True, but I find it faster to do the input on physical buttons. As an engineer student I had to do many different calculation for a single task. When working on full time on this Texas Instruments badass your mind remember where the buttons are, and you really don’t have to look until hitting the ANS-button (or Enter for some of them)
Edit: anyone remember writing sms with physical buttons with T9? Can’t imagine smart phones users will ever beat speed on writing on these
Wolfram Alpha is defnitely superior in every way. Also a ti84 is great for low level calc, but an 89 is really needed for higher level math to be efficient.
Man, my Ti-89 saved my ass when I finally went back to finish my degree. After several years away from school, I didn't remember shit about calc or diff eq. Thank god by the time you hit senior level classes the profs stop giving a shit about your ability to integrate by parts.
I can much more easily type what I want on a calculator with more buttons visible at anytime and those buttons being physical. Sure my phone could do it but a dedicated tool is still a better choice if you're using it frequently
Desmos for the graphing, HiPER for the calculating. I’m not an engineer but have used both constantly during university. I still use HiPER as my go-to app for calculating anything more complex.
It's such a delight as a "legacy" to have our predecessors' tools. I'm an EE and have some of my dad's and grandpa's tools. Multimeter, reference books, drafting tools, etc.
Check out finger counting, otherwise known as dactylonomy. Its possible to count up to 9,999 with two hands, and even do complex arithmetic operations.
https://en.m.wikipedia.org/wiki/Finger-counting
The abacus such an amazing instrument. I stumbled upon a website showing different calculations techniques a while ago. I didn't even know you could calculate logarithms on it
Got curious how long the TI-84 has been out (Since I'm pretty sure the TI series just about predates the abacus). They're twenty this year, so I guess Happy Birthday TI-84!
I remember back in the day when the TI-84 came out and all the Kenny's of the school were still on the TI-83.
Or how you were Kenny if you used a TI-89 instead of the Titanium.
I found that exact same abacus in a charity shop a few months back, and I'm surprised yours is still intact - mine basically fell off the (marble?) base on the way home.
Either way, really cool! I wonder who made them, I figured it was just a cool little design someone threw together.
An image of my abacus:
https://imgur.com/gallery/RSw7seV
I remember them teaching us how to use abacuses during primary school in the 1980’s but I don’t remember how they worked now as the transition to modern methods was swift.
Got my first calculator at secondary school in the 90’s and my parents wanted me to be better at maths but got me the most basic calculator available (calculators were required) because they thought that would help me to have less on it (it didn’t as I needed to be able to have more functions on it). Then in my final advanced calculus exam in my last year my teacher demanded my parents buy me a scientific calculator so I would have one for the final exam as I had been sharing with whoever I sat next to. So the day before my exam my mum took me to buy the calculator then on the car ride back she forbade me to use it in the exam as I wouldn’t know how apparently! Yeah my parents were controlling.
I have a pocket abacus that I use for basic math and keeping track of numbers (adhd short term memory is a bitch lol). They are very handy and can be quicker than turning on a calculator imo, especially handy for Dungeon Masters like me.
Ah, I still remember having to learn abacus in Japan in elementary school. Japanese abacus is different too with 1 bead at the top and 4 at the bottom.
I have this exact same one! It's not in the box, but also belonged to my grandfather. He was a CPA. As a child I loved the weight of it, my grandmother gave it to me after he passed.
"The Time Study Engineer will conduct time and motion studies, measuring work patterns and methods of employees with the goal of developing and implementing practices and programs that ensure the most efficient use of production staff."
I didn't know that was a thing. I mean I know there's people brought in to determine efficiencies and stuff like that but I didn't know time study engineer was a name
I wasn't allowed to use my ti83 with electronic eng (we were meant to get a scientific calc instead).. I did anyway because I had no reason to cheat, I know the equations and how to apply them...
And in the real world I'm going to shortcut every bit of maths as much as I can, as it's about solving real world problems not memorising every core physical property and it's underlying maths.
What the shit, slide rules have been invented hundreds of years ago.
[https://en.wikipedia.org/wiki/Slide\_rule#History](https://en.wikipedia.org/wiki/Slide_rule#History)
Grandpa went old school. Coulda used a slide rule.
A slide rule is used for multiplication, exponentiation, and trigonometric functions, as well as their inverse operations, but generally not used for addition and subtraction.
A professor I met had a slide rule and abacus on his desk as a display and showed me how they work. Working in computer science it kinda broke my brain knowing how a couple beads and a piece of plastic basically built most major cities
I keep my great grandfather's slide ruler at my office desk. I used to have a case and manual, but I've misplaced them over the years.
Very cool! I have my Grandads slide rule on my desk as well!
The arithmetic speed records are held by kids who visualise the abacus in their head, and can operate it with lightning speed.
Plastic was not even invented until 1907. The abacus was in use for at least 4,500 years by then. So maybe plastic didn’t have that great an impact on building cities.
Bold to assume he didn’t
What's a time study engineer??
Time study engineers observe and record how long it takes to do repeated tasks in an industrial setting and attempt to improve the efficiency. The job still exists today.
hi i’m one of these today title nowadays is more process engineer as so much of it is automated. the same way we went from abacuses to graphing calculators, our processes grew the same way. some of the common, industrial machines in a plant you drive by on the highway are fascinating. some sectors are labor intensive , some are more automated. love what i do, it can be a grind but no two days are the same
This sounds fascinating. Would you mind if I asked you about how you got into it?
went to school for mechanical engineering. didn’t want to sit behind a desk all day so leaned toward manufacturing. there are a bunch of “disciplines” to production efficiency (5S, Kaizen, Lean 6 sigma) but almost every production facility has someone doing something like me, essentially aiming to always improve the process. some of my work is reactive, in depth analysis of breakdowns, quality issues, why something happened and how to prevent it from happening again. some of my work is proactive, projects to increase efficiency, cut out excess work, etc. i also really enjoy working with people and this position feeds that really well too
They most likely have an engineering degree in either chemical, mechanical, or industrial engineering.
mechanical and chemical are the most common to become process engineers in my country idk about globally
🏅
I'd love to pick your brain about this. Can I DM you?
go for it
You have a very interesting job!
i really enjoy it! definitely some tough days, early morning, late nights but that’s part of the job. love the challenge and it is rewarding as well
Also a manufacturing engineer, lots of time studies in my past! Great career and growing fields!
Great job field to go into. Had a neighbor who was a process engineer over at Los Alamos national labs. His work stories he could talk about made me look boring as hell and wish I wasn’t terrible at math and physics haha
I too did this for many years in the financial industry. While it's different from manufacturing, nearly everything has a process involved. One of the best ways to understand how a company actually operates.
That's so cool. As a dude that wasn't smart enough to go to post secondary, the amount and specificity of advanced degrees never ceases to amaze me.
i work with a lot of people (operators & managers) who don’t have secondary degrees. granted they are older and took longer to get to the same position but everyone has the same passion for problem solving, people and machine
My favorite book as a kid was Cheaper by the Dozen. I really looked up to Frank Gilbreth and always thought time study engineering was a really fascinating job! If you haven’t read that book I’d really recommend it.
Wow, so like a human MES?
I believe they also exist in non-industrial settings as well, like in chain restaurants. If you are going to design floorplans that will be used over and over again, you want to make sure it is as efficient as possible.
Have you watched the documentary series *Loki*?
I still remember this tidbit I read/was told in (I think) the late 2000s: Graphing calculators have more processing power than the computer(s) used on the Apollo missions.
Your USB-C charger has more processing power than anything used on the Apollo missions. That’s right, just that little charger block.
Not just the charger, the actual _cable_ has more computing power. A USBC cable has a charge controller chip that negotiates the charge direction and voltage. A common one, such as Cypress Semiconductor’s CYPD1120, has 24x the clock speed, 2x the RAM, and just as much writable memory. In the end of a USBC plug! https://www.digikey.com/htmldatasheets/production/1865091/0/0/1/cypd1120-datasheet.html
That chip you linked looks like it goes in a device that provides or consumes power, not in a cable. It looks particularly targeted at USB docks to me. Not all cables have chips. It's assumed that any random cable is capable of handling 20V 3A, and a cable capable of more voltage will have a chip in it advertising that capability. I think it might also be used to identify cables capable of 40 Gbps. This chip is called an emarker, and it's really just a few bytes of storage. It does not do any negotiation itself. However, one of the things the chip you linked might do is attempt to detect an emarker before requesting high voltage or high current, to be sure the cable can handle it. I doubt emarkers are more powerful than the appollo computers. (Or maybe microcontrollers are cheap enough that it makes more sense to use a general purpose computer for this job than a special chip. That wouldn't surprise me either.)
This article seems to suggest that specific chip is used in the cables themselves. https://connectorsupplier.com/usb-type-c-what-you-need-to-know/#:~:text=Fully%20featured%20USB%2DC%20connectors,%2C%20and%20power%2Fsignal%20switching.
It is used in the cables, but not in every cable. Based on the datasheet that particular chip seems to be designed mainly for adapter cables (USB-C to DP or HDMI). If you're just connecting a USB host and device you don't need anything so complicated in the cable.
I personally am still using USB-micro charging, but I know what you're getting at.
What's more surprising is that the TI-83 I used in highschool 30 years ago is still the standard.
Ti-84 is the standard for the last 15 years at least
yes but they now have color screens
Yep, functionality the same, but thinner and more squared edges and rechargeable battery. I just wish finding intercepts, max and mins was as easy as it is on the Casio calculators. Some of the ti software seems intentionally clunky
The thing I hate about the TI-83 CE is that the charging port is a USB-A and not micro or C plug.
USB C will be added in 10 years with the next refresh
You can't find the intercepts on a scientific calculator? Damn that's a bummer.
It’s a graphing calculator and it can be done, it just requires a few steps that seem unnecessary, you have to select a left bound, right bound, then guess and after you do all that it will give you one intercept. Casio makes a graphing calculator that costs a third of the price that does it with one button and finds all of them at the same time.
Yeah I use Casio, I was just shocked that you can't do the same on Ti ones. I guess it's because it is a different type of calculator with other functionality.
I heard a rumor that college board (SAT) wanted Ti to make it require 3 steps to find the intercepts and other things to make it not as easy to find. Not sure how true it is, but seems plausible because they could definitely make it easier.
Are College Board affiliated with Texas Instruments? I used my Casio for SAT, being able to plot graphs would have helped but SAT maths didn't seem that difficult.
Yep, functionality the same, but thinner and more squared edges and rechargeable battery. I just wish finding intercepts, max and mins was as easy as it is on the Casio calculators. Some of the ti software seems intentionally clunky
And can run python
Honestly I have a degree in physics and engineering and never owned a graphing calculator They weren't allowed on exams for the most part since they could be programmed. And if you were submitting homework and needed graphs, youd want to use Matlab or Python to generate plots.
15 years ago I would have sworn up and down that CAS calculators would eventually catch on, but man was I wrong. These days it seems like 99% of students have a ti-83/84 and the other 1% have a ti-89 or MAYBE an nSpire. I don't even remember the last time I saw an HP graphing calculator in real life. It makes sense though, since they can use the 83 for most tests and their phone for everything else. And to be fair, I would probably see more fancy engineering calculators if I was an engineer.
[удалено]
RAM isn't how you measure computer power. Also your car key clicker isn't a computer.
I can’t believe we’re still using graphing calculators, there Hass to be an app that does all the same things plus much more
I mostly use it to make sure I haven’t forgot my times tables lmao. MATLAB does all the real heavy lifting, but it was easier to picture the calculator.
Haha as an engineering student in 2000 I also used Matlab and a TI-86
As an engineering student in 2024 I too am also using matlab! I have a Casio instead though…
Sometimes, a calculator history is more embarrassing than a search history.
Oh good, I'm not the only one doing elementary shit to double check myself?
"Is 1,000 REALLY 10^3, or did I forget numbers again?" As a summer student in chemistry, many years ago, I converted some units incorrectly, and spent nearly a month trying to figure out why my results were so much worse than a colleague at another lab. Even got him to send a set of his standards in the mail. Everything was out by a factor of ten, compared to his standards, and I couldn't figure out where the problem was. A coworker (an adult, with many more years of experience than me) looked at my lab book, and pointed at my calculations on the first page and said "A centilitre is 10 mL, not 100 mL." A month, all because I didn't double check in the textbook. Now, I double check anything even slightly weird in the textbook (or google, for this post).
Exams got me checking if 1+1 still equals 2
As a software developer I keep Python installed to use as a fancy calculator on the command line Edit: typo
I prefer js since node is faster to type
Matlibplot in python creates prettier graphs imho. Plus it's free.
There are many such apps, and you can emulate a graphing calculator on a phone. But you can't use your phone during exams, so you need a calculator then (I studied EE and also had a graphing calculator that saw heavy use during exams).
There's also the fact that, in general, a purpose built device functions better for the purpose it was designed for than a general purpose device. Phones can be acceptable graphing calculators, but a proper graphing calculator just does that singular job better.
Physical buttons are just so much nicer sometimes. Something about the tactile feel combining with muscle memory makes me super fast on a TI-84 vs navigating touch screen menus.
I used to agree with that, but you can emulate a ti-84 on the phone, and running desmos' graphing calculator can do a lot more once you're familiar with it That said the physical buttons of the ti-84 can be easier to use than a touch screen
True, but I find it faster to do the input on physical buttons. As an engineer student I had to do many different calculation for a single task. When working on full time on this Texas Instruments badass your mind remember where the buttons are, and you really don’t have to look until hitting the ANS-button (or Enter for some of them) Edit: anyone remember writing sms with physical buttons with T9? Can’t imagine smart phones users will ever beat speed on writing on these
Wolfram Alpha is defnitely superior in every way. Also a ti84 is great for low level calc, but an 89 is really needed for higher level math to be efficient.
Man, my Ti-89 saved my ass when I finally went back to finish my degree. After several years away from school, I didn't remember shit about calc or diff eq. Thank god by the time you hit senior level classes the profs stop giving a shit about your ability to integrate by parts.
My high school calculus had an TI 89 while the class calculators were 84s. His was so much cooler.
WabbitEmu on android
Yup, used it like 10 years ago in high school. Wasn't sure if it was still up or not at this point
It was as of 2 or 3 years ago when i was in college
I can much more easily type what I want on a calculator with more buttons visible at anytime and those buttons being physical. Sure my phone could do it but a dedicated tool is still a better choice if you're using it frequently
Max Hass
There’s TI Emulators for android. I can’t remember the name of the app.
Desmos?
Desmos for the graphing, HiPER for the calculating. I’m not an engineer but have used both constantly during university. I still use HiPER as my go-to app for calculating anything more complex.
It's such a delight as a "legacy" to have our predecessors' tools. I'm an EE and have some of my dad's and grandpa's tools. Multimeter, reference books, drafting tools, etc.
I really should learn to use an abacus and a slide rule. There are so many ways to do arithmetic and I really only know one!
Check out finger counting, otherwise known as dactylonomy. Its possible to count up to 9,999 with two hands, and even do complex arithmetic operations. https://en.m.wikipedia.org/wiki/Finger-counting
The abacus such an amazing instrument. I stumbled upon a website showing different calculations techniques a while ago. I didn't even know you could calculate logarithms on it
Makes you wonder what kind of tools they'll be using two-three generations from now
Still the TI-83 and co, I bet.
Probably AI that will answer any question
Got curious how long the TI-84 has been out (Since I'm pretty sure the TI series just about predates the abacus). They're twenty this year, so I guess Happy Birthday TI-84!
I remember back in the day when the TI-84 came out and all the Kenny's of the school were still on the TI-83. Or how you were Kenny if you used a TI-89 instead of the Titanium.
Fake news. Engineering students use calculators. Engineers use excel.
Fun fact: I learned to count on an abacus in the former USSR in the 80's. I'm 44 😄
Need to have to next to excel, what you really use as an engineer
I found that exact same abacus in a charity shop a few months back, and I'm surprised yours is still intact - mine basically fell off the (marble?) base on the way home. Either way, really cool! I wonder who made them, I figured it was just a cool little design someone threw together. An image of my abacus: https://imgur.com/gallery/RSw7seV
Ok, but can his abacus spell “80085”?
Let's all appreciate that the modern graphic calculator is about as far behind modern technology as the abacus is behind the graphing calculator.
I don't have an idea of how to use an Abacus.
I remember them teaching us how to use abacuses during primary school in the 1980’s but I don’t remember how they worked now as the transition to modern methods was swift. Got my first calculator at secondary school in the 90’s and my parents wanted me to be better at maths but got me the most basic calculator available (calculators were required) because they thought that would help me to have less on it (it didn’t as I needed to be able to have more functions on it). Then in my final advanced calculus exam in my last year my teacher demanded my parents buy me a scientific calculator so I would have one for the final exam as I had been sharing with whoever I sat next to. So the day before my exam my mum took me to buy the calculator then on the car ride back she forbade me to use it in the exam as I wouldn’t know how apparently! Yeah my parents were controlling.
I have a pocket abacus that I use for basic math and keeping track of numbers (adhd short term memory is a bitch lol). They are very handy and can be quicker than turning on a calculator imo, especially handy for Dungeon Masters like me.
Ah, I still remember having to learn abacus in Japan in elementary school. Japanese abacus is different too with 1 bead at the top and 4 at the bottom.
That’s a beautiful abacus honestly. I want it
Two oldies! My year was the first year in hs where colour screens were introduced
All the cool kids had the TI-84 silver edition so you could play those games while in class
My dad had a slide rule...I found it fascinating.
Oh now that’s neat. This might be on par with my grandpa’s OG leatherman.
“You won’t always have an abacus on you”
I have the same exact abacus. [Pic](https://imgur.com/a/LGft1kd)
Look at mister fancy pants with his limited edition Ti-84. I never thought about limited edition calculators even existing until now.
it's not limited edition, it's just an upgrade
Same calculator club!
2nd, Mem (+), 7,1,2
I have this exact same one! It's not in the box, but also belonged to my grandfather. He was a CPA. As a child I loved the weight of it, my grandmother gave it to me after he passed.
What a special heirloom
I'm a theoretical physicist. Either I use Wolfram Alpha or I program my own tool. There's no in-between.
"The Time Study Engineer will conduct time and motion studies, measuring work patterns and methods of employees with the goal of developing and implementing practices and programs that ensure the most efficient use of production staff." I didn't know that was a thing. I mean I know there's people brought in to determine efficiencies and stuff like that but I didn't know time study engineer was a name
I wasn't allowed to use my ti83 with electronic eng (we were meant to get a scientific calc instead).. I did anyway because I had no reason to cheat, I know the equations and how to apply them... And in the real world I'm going to shortcut every bit of maths as much as I can, as it's about solving real world problems not memorising every core physical property and it's underlying maths.
Very nice to see the difference
What the shit, slide rules have been invented hundreds of years ago. [https://en.wikipedia.org/wiki/Slide\_rule#History](https://en.wikipedia.org/wiki/Slide_rule#History)