Method abs

lib/java/lang/Math.java:60–64

Returns the absolute value of the argument. Special cases: abs(-0.0) = +0.0 abs(+infinity) = +infinity abs(-infinity) = +infinity abs(NaN) = NaN @param d the value whose absolute value has to be computed.

(double d)

     * @return the absolute value of the argument.
     */
    public static double abs(double d) {
        long bits = Double.doubleToLongBits(d);
        bits &= 0x7fffffffffffffffL;
        return Double.longBitsToDouble(bits);
    }

    /**
     * Returns the absolute value of the argument.