diff options
Diffstat (limited to 'src/algebra/plot3d.spad.pamphlet')
| -rw-r--r-- | src/algebra/plot3d.spad.pamphlet | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/plot3d.spad.pamphlet b/src/algebra/plot3d.spad.pamphlet index eae26c33..44429031 100644 --- a/src/algebra/plot3d.spad.pamphlet +++ b/src/algebra/plot3d.spad.pamphlet @@ -192,11 +192,11 @@ Plot3D(): Exports == Implementation where select(l,f,g) == m := f first l - if (EQL(m, quietDoubleNaN()$Lisp)$Lisp) then m := 0 + if (%sptreq(m, quietDoubleNaN()$Lisp)$Foreign(Builtin)) then m := 0 -- for p in rest l repeat m := g(m,fp) for p in rest l repeat fp : F := f p - if (EQL(fp, quietDoubleNaN()$Lisp)$Lisp) then fp := 0 + if (%sptreq(fp, quietDoubleNaN()$Lisp)$Foreign(Builtin)) then fp := 0 m := g(m,fp) m |