>> spdemo Sparse grid representation of the function: z = vals: {1x9 cell} gridType: 'Clenshaw-Curtis' d: 2 range: [2x2 double] maxLevel: 8 estRelError: 0.0090 fevalRange: [0.0049 0.9975] minGridVal: [1 0] maxGridVal: [0.0625 0.6250] nPoints: 1537 fevalTime: 0.0310 surplusCompTime: 0.0310 >>