IRAF Help package for grasp.model:
detect - Compute effect of Fourier Tach detector
expand - Expand polynomial functions into images
genvim - Generate velocity, intensity, and modulation images
interf - Compute interferometer numerator, denominator, brightness
random - Generate an image of random numbers
rrotat - Rotate an image
sphinv - Spherical harmonic inverse transform
sphlos - Convert from spherical to line of sight coordinates
sphspc - Generate a random spherical harmonic spectrum
synftach - Generate synthetic response of Fourier Tach
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