Welcome to the Parallax Discussion Forums, sign-up to participate.

Keith Young
Posts: **569**

Hi guys,

I'm working on an article covering**Applied Math Problems**.

Can you please let me know how you've used Math in your career?

I tried to break this down by different individual math skills. So for example Simultaneous Linear Equations is in Algebra and I have a few examples where I've used that.

I have an ME and AE so hopefully you guys will have uses from other fields such as EE and CS etc. Especially simpler ones in everyday use. Something random like I don't know, it takes me an hour to rake the lawn alone, once I had 2 friends help and it took 30 minutes. Just calculating basic things but hopefully a little more interesting and useful than that.

Thanks for any help! I wasn't great at Math at first mostly because I didn't see the point. It wasn't until I saw the uses that I became interested.

Keith

I'm working on an article covering

Can you please let me know how you've used Math in your career?

I tried to break this down by different individual math skills. So for example Simultaneous Linear Equations is in Algebra and I have a few examples where I've used that.

I have an ME and AE so hopefully you guys will have uses from other fields such as EE and CS etc. Especially simpler ones in everyday use. Something random like I don't know, it takes me an hour to rake the lawn alone, once I had 2 friends help and it took 30 minutes. Just calculating basic things but hopefully a little more interesting and useful than that.

Thanks for any help! I wasn't great at Math at first mostly because I didn't see the point. It wasn't until I saw the uses that I became interested.

Keith

## Comments

773Propeller Tool 1.3.2, BASIC Stamp Editor 2.5.4, Javelin Stamp IDE x.x.x, Arduino IDE, PST

Hardware:

BASIC Stamp Board of Education, Propeller Board of Education, Propeller Project Board, Propeller Mini

773Does anyone else recognize the board on this robot, from the above link??? And the drive mechanics???

Propeller Tool 1.3.2, BASIC Stamp Editor 2.5.4, Javelin Stamp IDE x.x.x, Arduino IDE, PST

Hardware:

BASIC Stamp Board of Education, Propeller Board of Education, Propeller Project Board, Propeller Mini

569I know the guy says Arduino but yeah it's Parallax with a 3D Printed chassis. Kids wrote it in C for the bots and Spin for the central controller.

Founder of Kinverthttps://www.kinvert.com/15,397I’ve used simultaneous equations and polar-cartesian early on in electronics.

I’ve use pythagorus theorem and circle circumference and area, plus area and volume many times when designing things at home such as driveways, roof pitch, paint required etc. Used general maths to work out number of bricks required, lawn area, etc. This would have to be by far the most used maths in 50 years since leaving school.

I’ve used pythagorus lots to work out pcb layouts such as how close a hole/via/pad can be from another.

Never had the need to use matrices in programming. Not done any fourier transforms which is used in signal processing.

I regularly use maths (well more than once a week) to add/subtract/multiply/divide calculations. As I grew up without calculators, I regularly do these things in my head, or sometimes on paper. I just dont reach for the calculator/phone/computer to do these often as its not worth the trouble. I can also estimate an answer which the modern youth cannot do due to reliance on calculators - they seem to lack an understanding when an answer is obviously wrong.

My Prop boards: P8XBlade2, RamBlade, CpuBlade, TriBladeProp OS(also see Sphinx, PropDos, PropCmd, Spinix)Website: www.clusos.comProp Tools (Index) , Emulators (Index) , ZiCog (Z80)1,065I used trig (sine and cosine) not too long ago to simulate an analog clock in Blockly.

22,439-Phil

Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away.-Antoine de Saint-Exupery108The same sorts of calculations are useful when you're not doing graphics but something conceptually similar - maybe tracking the orientation in 3D space of a drone or submarine by integrating the roll / pitch / yaw readings from a gyro and/or accelerometer sensor. Sooner or later you have to switch from mere 3-axis stuff to using quaternions or you run into problems with 'gimbal lock' when you get too near to a rotation axis - but again that is just extra matrix operations.

398Mike

3,6831,495I gave up on that half long ago.........

19,515Also lots of gear/diameter/wheel size calculations used motor speed/torque charts (attached) to optimize speed/efficiency.

"When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."- Pablo Picasso