Make percentage units work like a unitless scalar. #108
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- A side effect of this enhancement is divmod now also works correctly with the same unit support as regular division.
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ping @olbrich |
| when Unit | ||
| raise ZeroDivisionError if other.zero? | ||
| self_pct = @numerator == ['<percent>'] | ||
| other_pct = other.numerator == ['<percent>'] |
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I'd prefer to have a helper method called 'percent?'
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this is pretty cool ! |
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The following percentage based calculations now work as shown:
Unit('50 %') * Unit('50 %) == Unit('25 %')Unit('50 m') * Unit('10 %) == Unit('5 m')Unit('10 %') * Unit('50 m) == Unit('5 m')Unit('50 m') / Unit('10 %) == Unit('500 m')Unit('50 %') / Unit('10 m) == Unit('1/20 m')Unit('50 %') / Unit('50 %) == Unit(1)Unit('50 %').divmod Unit('50 %) == [1,0]Unit('15 m').divmod Unit('6 %) == [Unit('250 m'), Unit('0 m')]A side effect of this enhancement is divmod now also works correctly with the same unit support as regular division:
Unit('15 m').divmod Unit('6') == [Unit('2 m'), Unit('3 m')]Unit('15 m').divmod Unit('6 cm') == [Unit('2 m/cm'), Unit('3 m/cm')]