The IsAnagram(s,t) command returns the value true if the string s is an anagram (permutation) of the string t. Otherwise, the value false is returned.

If s and t are empty strings, the command returns true.

All of the StringTools package commands treat strings as (null-terminated) sequences of $8$-bit (ASCII) characters.  Thus, there is no support for multibyte character encodings, such as unicode encodings.

$\mathrm{with}\left(\mathrm{StringTools}\right)\:$

$\mathrm{IsAnagram}\left(''elvis''\,''lives''\right)$

$\mathrm{true}$

$\mathrm{IsAnagram}\left(''diet''\,''edit''\right)$

$\mathrm{true}$

$\mathrm{IsAnagram}\left(''tide''\,''diet''\right)$

$\mathrm{true}$

$\mathrm{IsAnagram}\left(''tide''\,''toad''\right)$

$\mathrm{false}$

$\mathrm{IsAnagram}\left(''the\; eyes''\,''they\; see''\right)$

$\mathrm{true}$

$\mathrm{IsAnagram}\left(''eleven\; plus\; two''\,''twelve\; plus\; one''\right)$

$\mathrm{true}$