lookfor

Purpose

Keyword search through all help entries.

Synopsis

lookfor topic

Description

The command

 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 MATLAB's search path. For all files in which a match occurs, lookfor displays the H1 line.

Examples

For example 

lookfor inverse
finds at least a dozen matches, including H1 lines containing "inverse hyperbolic cosine", "two-dimensional inverse FFT", and "pseudoinverse." Contrast this with

which inverse
or

what inverse
These commands run more quickly, but 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 keyword.

See Also

dir, help, what, which, who

(c) Copyright 1994 by The MathWorks, Inc.