IMSL C Math Library
Chapter 6
Transforms
Functions
Real Trigonometric FFTs
Real FFT,
fft_real
Real FFT initialization,
fft_real_init
Complex Exponential FFTs
Complex FFT,
fft_complex
Complex FFT initialization,
fft_complex_init
Real Sine and Cosine FFTs
Fourier cosine transform,
fft_cosine
Fourier cosine transform initialization,
fft_cosine_init
Fourier sine transform,
fft_sine
Fourier sine transform initialization,
fft_sine_init
Two-Dimensional FFTs
Complex two-dimensional FFT,
fft_2d_complex
Convolution and Correlation
Real convolution/correlation,
convolution
Complex convolution/correlation,
convolution (complex)
Laplace Transform
Approximate inverse Laplace transform of a complex function,
inverse_laplace