Hello!
Thanks for reply. The only thing that I have in mind to generalize a
method to discover periodic solutions is to convert simple
trigonometric functions in exp/ln expressions with Eulero formulas:
$cos(x)=\frac{e^{ix}+e^{-ix}}{2}$
$sin(x)=\frac{e^{ix}-e^{-ix}}{2i}$
with 'i' imaginary unit, and 'x' a real value (if I'm right, 'x' must
be real). So, one could solve the equation with a substitution of
variables, like $w=e^{ix}$, and finally solve the equation for 'x',
but one could also to know that the equation $e^{ix}=e^{ia}$, with 'a'
real, has infinite solutions like $x=a+2n\pi$ with 'n' Integer ($e^{ia}
$ is periodic). I will try to search if sympy has some conversions
rules from trig to exp formulas, and maybe viceversa.
Matteo
--
You received this message because you are subscribed to the Google Groups
"sympy" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sympy?hl=en.
