Changeset 2741 for trunk/psLib/src/math/psPolynomial.c

Timestamp:

Dec 16, 2004, 2:18:31 PM (22 years ago)

Author:

gusciora

Message:

Fixed chebyshev polynomial code.

File:

• trunk/psLib/src/math/psPolynomial.c (modified) (2 diffs)

trunk/psLib/src/math/psPolynomial.c

@@ -7 +7 @@
  *  polynomials.  It also contains a Gaussian functions.
  *
- *  @version $Revision: 1.72 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2004-12-15 23:35:34 $
+ *  @version $Revision: 1.73 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2004-12-17 00:18:31 $
  *
  *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
@@ -306 +306 @@
 // XXX: You can do this without having to psAlloc() vector d.
 // XXX: How does the mask vector effect Crenshaw's formula?
+// XXX: We assume that x is scaled between -1.0 and 1.0;
 static float chebPolynomial1DEval(float x, const psPolynomial1D* myPoly)
 {
+    //    PS_FLOAT_CHECK_RANGE(x, -1.0, 1.0, 0.0);
+    PS_FLOAT_CHECK_RANGE(x, -1.0, 1.0, 0.0);
     psVector *d;
     psS32 n;