Good time!
I have function f(x). I can't get certain value of f(x)=0 from solve().
Why is it solved with sin(x) in answer?
(%i56) f(x):=144 * sin(x) + 12*sqrt(3)*%pi + 36*x^2 + %pi^2 - 72 - 12*%
pi*x - 72*sqrt(3)*x$
(%i57) solve(f(x));
6 sqrt(5 - 4 sin(x)) - %pi - 6 sqrt(3)
(%o57) [x = - --------------------------------------,
6
6 sqrt(5 - 4 sin(x)) + %pi + 6 sqrt(3)
x = --------------------------------------]
6
I want to get something like this:
(%i58) find_root(f(x),x,0.3,0.7);
(%o58) 0.52360846201579
--
Mansur Marvanov <nanorobocop at gmail.com>