MATLAB: How to solve equations

equationsolvesolve equationstraight line

I want to solve equations sin(x) and straight line y=0.5, in a specified domain, for example: I want to solve y=sin(x) and y=0.5 in domain 0<x<360, and get the intersecting points.

Best Answer

Symbolically,
syms x
solve(sin(x) - 0.5 == 0,x)
ans =
     pi/6
 (5*pi)/6
Numerically,
 myfun = @(x) sin(x) - 0.5;
 fsolve(myfun,0)  % guess: 0
 ans =
   0.523598768728013
For other numeric solutions you need to adjust the guess value.
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