Java Utililty Methods Number Invert

List of utility methods to do Number Invert

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Description

The list of methods to do Number Invert are organized into topic(s).

Method

doubleinvert(double slope)
invert 
return Math.pow(slope, -1);
doubleinvert(final double angle)
invert 
return angle + (RAD_FULL / 2.);
floatinvert(float value)
invert 
return value > 0.0f ? -Math.abs(value) : Math.abs(value);
intinvert(int numToInvert)
Inverts a number. 
return ~numToInvert + 1;
double[]invert3x3(final double m00, final double m01, final double m02, final double m10, final double m11, final double m12, final double m20, final double m21, final double m22)
Invert a 3x3 matrix given as elements in row major order. 
final double det = det3x3(m00, m01, m02, m10, m11, m12, m20, m21, m22);
if (det == 0)
    throw new IllegalArgumentException("Matrix not invertible.");
return new double[] { (m11 * m22 - m12 * m21) / det, (m02 * m21 - m01 * m22) / det,
        (m01 * m12 - m02 * m11) / det, (m12 * m20 - m10 * m22) / det, (m00 * m22 - m02 * m20) / det,
        (m02 * m10 - m00 * m12) / det, (m10 * m21 - m11 * m20) / det, (m01 * m20 - m00 * m21) / det,
        (m00 * m11 - m01 * m10) / det };
floatinvertFloat(float n)
invert Float 
return (n * -1);
floatinvertFloat(float number)
Inverts a float from positive to negative or negative to positive 
return number *= -1;
longinvertNumeral(int base, String number)
invert Numeral 
long decimal = 0;
char[] c = number.toCharArray();
for (int i = 0; i < c.length; i++) {
    if ((c[i] >= '\u0030') && (c[i] <= '\u0039')) { 
        decimal = decimal * base + c[i] - '\u0030';
    } else if (c[i] >= '\u0041' && c[i] <= '\u005A') { 
        decimal = decimal * base + c[i] - '\u0041' + 10;
    } else if (c[i] >= '\u0061' && c[i] <= '\u007A') { 
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