/usr/share/freemat/toolbox/numerical/log2.m is in freemat-data 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 12 13 14 15 16 17 18 19 20 21 | % LOG2 LOG2 Base-2 Logarithm Function
%
% Usage
%
% Computes the log2 function for its argument. The general
% syntax for its use is
%
% y = log2(x)
%
% where x is an n-dimensional array of numerical type.
% Integer types are promoted to the double type prior to
% calculation of the log2 function. Output y is of the
% same size as the input x. For strictly positive, real inputs,
% the output type is the same as the input.
% For negative and complex arguments, the output is complex.
% Copyright (c) 2002-2006 Samit Basu
% Licensed under the GPL
function y = log2(x)
y = log(x)/log(2.0);
|