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path: root/src/algebra/strap/DIFRING-.lsp
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-rw-r--r--src/algebra/strap/DIFRING-.lsp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/algebra/strap/DIFRING-.lsp b/src/algebra/strap/DIFRING-.lsp
index db6d32d4..02ec25d9 100644
--- a/src/algebra/strap/DIFRING-.lsp
+++ b/src/algebra/strap/DIFRING-.lsp
@@ -22,9 +22,7 @@
(SEQ (EXIT (LETT |r|
(SPADCALL |r| (|getShellEntry| $ 7))
|DIFRING-;differentiate;SNniS;2|)))
- (LETT |i| (QSADD1 |i|)
- |DIFRING-;differentiate;SNniS;2|)
- (GO G190) G191 (EXIT NIL))
+ (SETQ |i| (QSADD1 |i|)) (GO G190) G191 (EXIT NIL))
(EXIT |r|)))))
(DEFUN |DIFRING-;D;SNniS;3| (|r| |n| $)