Spectral interpolation on the nodes $\boldsymbol{\mathrm{LC}}^{(7,8)}_{(0,0)}$

 Choose function $f(x,y) =$ Choose parameters Frequency $m_1$ Frequency $m_2$ Phase shift $\kappa_1$ Phase shift $\kappa_2$ Interval for $x$ Interval for $y$ View angles $(\theta,\varphi)$

Interpolation nodes: $36$      Interpolation error: $0.0841112704$