numpy.polynomial.polynomial.polyline

numpy.polynomial.polynomial.polyline(off, scl)[源代码]

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.

参见

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