symvar - Determine symbolic variables in expression
Syntax
symvar 'expr'
s = symvar('expr')
Description
symvar 'expr' searches the expression, expr,
for identifiers other than i, j, pi, inf, nan, eps, and common functions. symvar displays
those variables that it finds or, if no such variable exists, displays an
empty cell array, {}.
s = symvar('expr') returns the
variables in a cell array of strings, s. If no such variable
exists, s is an empty cell array.
Examples
symvar finds variables beta1 and x,
but skips pi and the cos function.
symvar 'cos(pi*x - beta1)'
ans =
'beta1'
'x'See Also
findstr
 | symrcm | | synchronize |  |
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