doufeikuang7724 2016-09-08 13:50
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div和mod in big.Float

big.Int supports both Division and Modulo operations. Why division and modulo operations are not supported in big.Float? Is Quo() is different from division? Is there math.Mod(x, y float64) equivalent for big.Float

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  • dtip91401 2016-09-08 14:51
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    Division or quotient operation on integers and big integers produce integer value while on floats it produce float. That's why operations have different precision and mathematical sense.

    var x, y int = 5, 3
    z:=x/y    //give you 1
    

    but

    var x, y float32 = 5, 3
    z:=x/y   //give you 1.6666666
    

    Modulo or reminder operations didn't defined on floats because it's hard to elaborate what them can mean. Same with math/big

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