Research Article
Positivity Preserving Interpolation Using Rational Bicubic Spline
Table 6
Positive surface data from function
.
| | −3 | −2 | −1 | 1 | 2 | 3 |
| −3 | 0.0124 | 0.0238 | 0.0404 | 0.0404 | 0.0238 | 0.0124 | −2 | 0.0238 | 0.0635 | 0.1667 | 0.1667 | 0.0635 | 0.0238 | −1 | 0.0404 | 0.1667 | 1.3333 | 1.3333 | 0.1667 | 0.0404 | 1 | 0.0404 | 0.1667 | 1.3333 | 1.3333 | 0.1667 | 0.0404 | 2 | 0.0238 | 0.0635 | 0.1667 | 0.1667 | 0.0635 | 0.0238 | 3 | 0.0124 | 0.0238 | 0.0404 | 0.0404 | 0.0238 | 0.0124 |
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