Start with Pythagoras: x2 + y2 = z2 You are given the width x and height y of the triangle, so you can calculate z: z = Square Root(x * x + y * y) You now need to know the ratio of this triangle to a triangle with a z of 1: z1 = 1 / z; You can then multiply x and y by z1 and you have the values.

C++

trigonometry

How can atan2 be defined when all three points sits on origo?

24 Nov 2020 by Gerry Schmitz

Quote: For points on the boundaries of the quadrants, the return value is the following: If y is 0 and x is not negative, θ = 0. If y is 0 and x is negative, θ = π. If y is positive and x is 0, θ = π/2. If y is negative and x...

Python

trigonometry

Grid bearing Direction ( Geodetics )

1 May 2012 by Sumal.V

Hello all, If someone knows about deciding the bearing direction, given latitude and longitude, that would be helpful. I don't quite get the logic. here's an example. Point 1:Latitude: 41°15'18.000000"NLongitude: 76°00'0.000000"WPoint...

All-Topics

trigonometry

general

Grid bearing Direction ( Geodetics )

30 Apr 2012 by Peter_in_2780

The angles are NOT exactly 180 degress apart in general (add 180, mod 360), although that is reasonably close over short distances.Get all the detail (and maths as heavy as you could ever wish for!) here[^]Cheers,Peter

All-Topics

trigonometry

general

How do I add physics to my JS program?

25 Feb 2017 by Member 13023859

I am making a Javascript program that includes physics but the projectile formula is very difficult for me to get right. My code looks something like this //VARIABLES//speedvar speed = 0;//anglevar angle = 0;//previous coord logvar pballx = 0;var pbally = 0;var ppballx...

Javascript

trigonometry

mathematics

How do I add physics to my JS program?

25 Feb 2017 by Patrice T

reread your code ! if(ballx+ballsize/2 >= mouseX){ if(mouseX >= ballx-ballsize/2){ if(mouseY >= bally-ballsize/2){ // this line is the same as if(mouseY >= bally-ballsize/2){ // this one ballx = mouseX; ...

Javascript

trigonometry

mathematics

I am a little bit lost as I am new to programming, can anyone guide how I would start with this question?

29 Nov 2017 by Member 13548722

void computeXY(double p[2],int x,int y) -imagine the x y values being the width and height of a triangle -the function should set p to the width and height of that triangle when the hypotenuse is 1 -should basically divide x and y by the hypotenuse of the triangle they make -p[0] = x -p[1] = y...

C++

trigonometry

I am a little bit lost as I am new to programming, can anyone guide how I would start with this question?

29 Nov 2017 by KarstenK

At first you should understand the task, for that inform about trigonometry. Your width and height are the input for the math at a right angled triangle. With the law of pythagoras you will get the hypothenuse. With that result you divide and set the output into the pointers. Use float for...

C++

trigonometry

How can atan2 be defined when all three points sits on origo?

24 Nov 2020 by Tjohohan

trigonometry, programming, atan2[^] I was doing an animated GIF in python (pixel fractal) got stuck on an angle did angle on a plane web searched found atan2 its puzzling to me how atan2 can give angle zero when all three points sits on origo...

Python

trigonometry

Convert DXF polyline arc to gcode from the bulge

11 Mar 2021 by Marcus Neves

Here in C# ... public static List Bulge2IJ(double X1, double Y1, double X2, double Y2, double Bulge, Config config) { double C = 0; //lunghezza della corda - length of the cord double H = 0;...

algebra

trigonometry

Convert DXF polyline arc to gcode from the bulge

6 Jul 2023 by Ronald Veldman

I am writing an application in VB.net to convert a DXF file to GCode for my GRBL laser. I know there are many free or low cost programs out there, but I want this program to work in a very specific way (for too many reasons to explain here). I have been working on this program for about 6...

algebra

trigonometry

Fourier Transform in Digital Signal Processing

6 Mar 2016 by Jakub Szymanowski