Sorry, I missed the part that you are using TeX output format.
This is a bug.
This is a patch that fixes this problem.
You can make this patch take effect by
)read /path/to/patched/i-output.boot
(or compile fricas again with this patch applied)
diff --git a/src/interp/i-output.boot b/src/interp/i-output.boot
index 976fc7f9..31a2d53e 100644
--- a/src/interp/i-output.boot
+++ b/src/interp/i-output.boot
@@ -1149,13 +1149,17 @@
texFormat expr ==
ioHook("startTeXOutput")
- tf := '(TexFormat)
- formatFn :=
- getFunctionFromDomain("convert",tf,[$OutputForm,$Integer])
- displayFn := getFunctionFromDomain("display",tf,[tf])
- SPADCALL(SPADCALL(expr,$IOindex,formatFn),displayFn)
- TERPRI $texOutputStream
- FORCE_-OUTPUT $texOutputStream
+ -- If $IOindex is NIL, then don't print 'leqno' (equation number).
+ if NULL $IOindex then
+ texFormat1 expr
+ else
+ tf := '(TexFormat)
+ formatFn :=
+ getFunctionFromDomain("convert",tf,[$OutputForm,$Integer])
+ displayFn := getFunctionFromDomain("display",tf,[tf])
+ SPADCALL(SPADCALL(expr,$IOindex,formatFn),displayFn)
+ TERPRI $texOutputStream
+ FORCE_-OUTPUT $texOutputStream
ioHook("endOfTeXOutput")
NIL
--
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