from mathutil import sigmoid

print sigmoid(2.0)

from mathutil import findQuadraticRoots
findQuadraticRoots(2,5,0.5)
findQuadraticRoots(1,1,1)

findQuadraticRoots(1.0,-2.0,1.0)

from mathutil import arsinh
print arsinh(-4)

