| Log Message: |
- changed reduce so that it would always leave the denominator
positive (so reducing 6/-10 gives -3/5)
- added documentation line for reduce
- added method pow which takes an integer argument, and returns the
fraction raised to that power (throwing warnings for indeterminant
forms or division by 0)
- added doc line for pow
|
trunk/webwork/system/courseScripts/Fraction.pm