How to do Fourier Integrals on the HP Prime?

[Stevetuc]

https://www.hpcalc.org/details/9041

Quote:Performs symbolic time to frequency and frequency to time calculations: calculates for a given symbolic f(t) Fourier, Laplace and Z-transformation in symbolic form, draws the complex Laplace function together with the Fourier transformation slice as a 3D plot, and calculates for a given frequency transfer function the unity pulse, dirac pulse response and bode magnitude and phase in symbolic form. Includes PDF documentation.

It uses the following to calculate the Fourier transform

Code:


//   // Function.F2 Fourier( f(t) ) = ABS( laplace( f(t) ) with (i*X) as independant )
//   ABS(simplify(laplace(F1(x),x)))
//   subst('  ',('x') = ('i*X'))
//