Figure 1From: Non-polynomial cubic spline discretization for system of non-linear singular boundary value problems using variable mesh Graph of the exact solution \(\pmb{y(x)=( x^{2} -1)\sin (x) }\) versus the approximate solution in fourth-order uniform mesh method for \(\pmb{{N} = 32}\) and \(\pmb{\sigma =1}\) for Example 6.1 . Back to article page