/NumPy 1.17

# numpy.polynomial.laguerre.lagadd

`numpy.polynomial.laguerre.lagadd(c1, c2)` [source]

Add one Laguerre series to another.

Returns the sum of two Laguerre series `c1` + `c2`. The arguments are sequences of coefficients ordered from lowest order term to highest, i.e., [1,2,3] represents the series `P_0 + 2*P_1 + 3*P_2`.

Parameters: `c1, c2 : array_like` 1-D arrays of Laguerre series coefficients ordered from low to high. `out : ndarray` Array representing the Laguerre series of their sum.

#### Notes

Unlike multiplication, division, etc., the sum of two Laguerre series is a Laguerre series (without having to “reproject” the result onto the basis set) so addition, just like that of “standard” polynomials, is simply “component-wise.”

#### Examples

```>>> from numpy.polynomial.laguerre import lagadd
>>> lagadd([1, 2, 3], [1, 2, 3, 4])
array([2.,  4.,  6.,  4.])
```

© 2005–2019 NumPy Developers
Licensed under the 3-clause BSD License.
https://docs.scipy.org/doc/numpy-1.17.0/reference/generated/numpy.polynomial.laguerre.lagadd.html