Keyword search through the HELP entries.
LOOKFOR XYZ looks for the string XYZ in the first comment line
(the H1 line) of the HELP text in all M-files found on MATLABPATH.
For all files in which a match occurs, LOOKFOR displays the H1 line.
For example, "lookfor inverse" finds at least a dozen matches,
including the H1 lines containing "inverse hyperbolic cosine"
"two-dimensional inverse FFT ", and "pseudoinverse".
Contrast this with "which inverse" or "what inverse", which run
more quickly, but which probably fail to find anything because
MATLAB does not ordinarily have a function "inverse".
In summary, WHAT lists the functions in a given directory,
WHICH finds the directory containing a given function, and
LOOKFOR finds all functions in all directories that might have
something to do with a given key word.
See also DIR , HELP , WHO , WHAT , WHICH .