/*
@GROUP
general
@SYNTAX
pi
@DOC
mathematical constant pi
@EXAMPLES
pi
ans=3.1415926
@NOTES
Pi is a mathematical constant that represents the
ratio of any circle's circumference to its diameter in
Euclidean geometry, which is the same as the ratio of a
circle's area to the square of its radius.
@SEE
e, eps, i, j
*/
/*
%!@testcase
%! ml.executeExpression("clear('all');");
%! ml.executeExpression("a=pi;");
%! assertEquals( 3.1415926, ml.getScalarValueRe("a"), 0.0001);
%! assertTrue(0 == ml.getScalarValueIm("a"));
%!
*/