diff options
Diffstat (limited to 'math/surfit/doc/iseval.hlp')
| -rw-r--r-- | math/surfit/doc/iseval.hlp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/math/surfit/doc/iseval.hlp b/math/surfit/doc/iseval.hlp new file mode 100644 index 00000000..53853cfe --- /dev/null +++ b/math/surfit/doc/iseval.hlp @@ -0,0 +1,34 @@ +.help iseval Apr85 "Surfit Package" +.ih +NAME +iseval -- evaluate the fitted surface at x and y +.ih +SYNOPSIS +y = iseval (sf, x, y) + +.nf +pointer sf # surface descriptor +real x # x value, 1 <= x <= ncols +real y # y value, 1 <= y <= nlines +.fi +.ih +ARGUMENTS +.ls sf +Pointer to the surface descriptor structure. +.le +.ls x, y +X and y values at which the surface is to be evaluated. +.le +.ih +DESCRIPTION +Evaluate the surface at the specified value of x and y. ISEVAL is a real +valued function which returns the fitted value. +.ih +NOTES +ISEVAL uses the coefficient array stored in the surface descriptor structure. +Checking for out of bounds x and y values is the responsibility of the calling +program. +.ih +SEE ALSO +isvector +.endhelp |