Change in test_waveEqn.py test for A matrix (1D)

[Balavarun5]

Commit : 20b4e5b

Issue

The Travis CI check for pytest was showing an error for A-matrix test (Although the pytest was passing when run remotely). The reason for this was that the Travis build log displayed warnings when poly1d was recursively used.

The code uses poly1d only to obtain the coefficients of the Lagrange basis polynomials. At the time, This part of the code wasn't vectorized. This issue is to be fixed.

[amanabt]

"Although the pytest was passing when run remotely".
What did you mean by running pytest remotely?