Reference:

In [5]:

# SageMath version version()

'SageMath version 8.6, Release Date: 2019-01-15'

In [6]:

# Python version sys.version_info[:3]

(2, 7, 15)

In [1]:

y, z = var('y z') cauchy = y.substitute(solve(z*y^3 + y^2 - 2*z*y + 2, y)[0]) def F(u): return arg(cauchy).substitute(z=u).n() numerical_integral(F, 1, 2)

negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power
negative number cannot be raised to a fractional power

(0.0, 0.0)

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