@Override
public FloatMatrix function(FloatMatrix m) {
FloatMatrix md = m.dup();
float[] data = md.toArray();
float x;
for (int i = 0; i < data.length; i++) {
x = data[i] * 0.5f;
data[i] = x / (float) Math.sqrt(x * x + 1.0) * 0.5f + 0.5f;
}
return md;
}
