Sinusoids, Pythagorean Identity, Sum Identity
A sinusoid is the solution of the IVP f ''(x)+k^2*f(x)=0 with f(0)=a
and f '(0)=b. This illustrator shows f(x), the Pythgorean Identity for sinusoids, and the sinusoid sum formula.
John Gresham, Bryant Wyatt, Jesse Crawford
Tarleton State University