Piecewise Bivariate Hermite Interpolations for Large Sets of Scattered Data

Table 4

The computing time of the four methods on the 50×50 grid points in the unit square.

Number of scatter data	𝑄𝑓(𝑥,𝑦)	𝑄^∼𝑓(𝑥,𝑦)	WLRBF	Shepard’s method
100	5.6	15.46	185.64	52.54
300	28.59	30.35	399.38	113.99
500	42.31	13.77	586.63	180.94
800	64.21	68.04	779.32	225.97
1000	80.28	80.66	1102.64	271.22