Water 5-Common Data Types-Number
method number.minus
Contract
Return typewob
Parameter keyDefault valueType
arg1optnumber
arg2optnumber
Water Contract
<method number.minus
  arg1=opt=number
  arg2=opt=number/>

Examples:
5.<minus 2/>3
5.6.<minus 0.2/>5.3999999999999995
<minus 5 3/>2
If minus is passed only one number it negates it.
<minus 3/>-3
<minus -2/>2

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