%SINPI   Compute sin(X*pi) accurately.
%   SINPI(X) computes sin(X*pi) without explicitly computing X*pi.
%   For integers n, sinpi(n) is exactly zero, whereas sin(n*pi)
%   reflects the accuracy of the floating point value of pi.
%
%   Class support for input X:
%      float: double, single
%
%   See also SIN.

%   Copyright 2018 The MathWorks, Inc. 
%   Built-in function.