This file is indexed.

/usr/share/freemat/help/text/isfloat.mdc is in freemat-help 4.0-5.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
ISFLOAT ISFLOAT Test for Floating Point Array

Usage

The syntax for isfloat is

   x = isfloat(y)

and it returns a logical 1 if the argument is a floating 
point array (i.e., a single or double), and a logical
0 otherwise.