Creating implementation for idiom 355 : Absolute value

Idiom

# 355 Absolute value

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Assign to y the absolute value of the number n

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import "math"

y := math.Abs(x)

import "math/big"

y := new(big.Float)
y.Abs(x)

import "math/big"

y := new(big.Int)
y.Abs(x)

y := x
if y < 0 {
	y = -x
}

y = abs(n)

from math import fabs

y = fabs(n)

y = n.abs