numpy.polynomial.chebyshev.chebline

polynomial.chebyshev.chebline(off, scl)[source]

Chebyshev series whose graph is a straight line.

Parameters
off, sclscalars

The specified line is given by off + scl*x.

Returns
yndarray

This module’s representation of the Chebyshev series for off + scl*x.

See also

numpy.polynomial.polynomial.polyline
numpy.polynomial.legendre.legline
numpy.polynomial.laguerre.lagline
numpy.polynomial.hermite.hermline
numpy.polynomial.hermite_e.hermeline

Examples

>>> import numpy.polynomial.chebyshev as C
>>> C.chebline(3,2)
array([3, 2])
>>> C.chebval(-3, C.chebline(3,2)) # should be -3
-3.0

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