how to solve three implicit equation?

Question

Inam Ullah 2015-10-22

评论： Inam Ullah 2015-10-23

Sir, I am try to solve a question and I stuck here how to solve this equation.

xy=5

xz= 15

and I want the value of x,y,z where y+z = 1 How to solve in Matlab. Please guide me.

Answer 1

Stefan Raab 2015-10-22

编辑：Stefan Raab 2015-10-22

Hi, at first you have to declare x, y and z as symbolic variables:

syms x y z;

Then you can use the function solve():

result = solve(x*y==5, x*z == 15, y+z==1, [x y z]);

You can then access the results via result.x, result.y and result.z . Next time you could use Google, I found the solution in less than a minute: http://www.mathworks.com/matlabcentral/answers/248493-how-to-solve-implicit-symbolic-equations-using-mupad

Kind regards, Stefan

Inam Ullah 2015-10-23

thanks Sir. It works.