# lmlib.polynomial.poly.poly_sum_expo#

lmlib.polynomial.poly.poly_sum_expo(expos)#

$$\alpha^\mathsf{T} x^q + \dots + \beta^\mathsf{T} x^r = \tilde{\alpha}^\mathsf{T} x^{\color{blue}{\tilde{q}}}$$

Exponent vector $$\tilde{1}$$ of sum of univariate polynomials with exponent vectors expos, all of common variable x

Parameters

expos (tuple of array_like) – (q, ..., r), list of exponent vectors of polynomials to be summed

Returns

q_tilde, exponent vector $$\tilde{q}$$

Return type

Note

To get $$\tilde{\alpha}$$, see poly_sum_coef().

References

[Wildhaber2019] (Eq. 6.4)