How to solve a math equation in a programming language?

php math equation equation-solving
xidew picture xidew · Aug 31, 2011 · Viewed 17.2k times · Source

I need help to solve this formula ((n * 2) + 10) / (n + 1) = 3, preferably in PHP. (The numbers 2, 10 and 3 should be variables that can be changed.)

I'm able to solve this equation on paper quite easily. However, when I try to implement this in PHP, I'm not sure where to start. I've done several Google queries and searches on here and nothing seems to help. I'm missing the proper approach to deal with this problem.

Any tips and pointers would be great, and if you provide the exact code, please explain how you got to this result.

Answer

user684934 picture user684934 · Aug 31, 2011

You're wanting to solve an equation, not implement it. There's a difference. Implementing the equation would be as simple as typing it in. You'd probably want to make it an equality operator (==) though.

Equation solvers are complicated, complicated things. I wouldn't try to make one when there are such good ones ( http://en.wikipedia.org/wiki/Comparison_of_computer_algebra_systems ) lying around.

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