::hwat::math::IfEqual

::hwat::math::IfEqual - Check the equality of two float numbers.

::hwat::math::IfEqual d_f1 d_f2 d_err

d_f1	The first float number.
d_f2	The second float number.
d_err	Optional, the error for judging the equality.

1 if d_f1 equals d_f2.

0 if d_f1 does not equal d_f2.

::hwat::math::IfEqual $x $y 1.0e-5

The default error for judging the equality is 1.0e-6.