Sharedreal-cube-root.ipynbOpen in CoCalc
Author: Samuel Lelièvre
Views : 11
Description: Real cube root with Python2-based Sage

Integration involving cube-root of negative reals

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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