numpy.polynomial.chebyshev.chebline¶
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numpy.polynomial.chebyshev.
chebline
(off, scl)[source]¶ Chebyshev series whose graph is a straight line.
Parameters: off, scl : scalars
The specified line is given by
off + scl*x
.Returns: y : ndarray
This module’s representation of the Chebyshev series for
off + scl*x
.See also
polyline
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