Java Utililty Methods Epsilon

double epsilon(double v)
epsilon

if (Math.abs(v) < 1.0E-10)
 return 0.0;
return v;

long epsilonCeiling(double value)
Similar to Math.ceil(value), but adjusts small numerical rounding errors +- epsilon.

double epsilon = 0.0000001;
return (long) Math.ceil(value - epsilon);

boolean epsilonEquals(final double a, final double b, final double epsilon)
Calculate whether the two scalars (a and b) are equal, given some slack value epsilon.

final double diff = a - b;
return diff < epsilon && diff > 0d - epsilon;

boolean epsilonEquals(final float x, final float y)
epsilon Equals

return Math.abs(y - x) < 1.0E-5F;

boolean epsilonEquals(float f1, float f2, float epsilon)
epsilon Equals

return (f1 + epsilon >= f2 && f1 - epsilon <= f2);

boolean epsilonEquals(float p_180185_0_, float p_180185_1_)
epsilon Equals

return abs(p_180185_1_ - p_180185_0_) < 1.0E-5F;

boolean epsilonEquals(float v1, float v2)
Determines whether two values are "close enough" to equal.

return Math.abs(v1 - v2) < EPSILON;

double epsilonFloor(double d)
protect the floor function from the vagaries of floating point precision.

return Math.floor(d + epsilon);

boolean epsilonZero(double input)
epsilon Zero

return Math.abs(input) < 0.000001;