This is documentation for an old release of NumPy (version 1.15). Read this page Search for this page in the documentation of the latest stable release (version 2.2).

numpy.polynomial.polynomial.polyline

numpy.polynomial.polynomial.polyline(off, scl)

Returns an array representing a linear polynomial.

Parameters:

off, scl : scalars

The “y-intercept” and “slope” of the line, respectively.

Returns:

y : ndarray

This module’s representation of the linear polynomial off + scl*x.

See also

chebline

Examples

>>>

>>> from numpy.polynomial import polynomial as P
>>> P.polyline(1,-1)
array([ 1, -1])
>>> P.polyval(1, P.polyline(1,-1)) # should be 0
0.0