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-rw-r--r--src/algebra/dpolcat.spad.pamphlet3
1 files changed, 0 insertions, 3 deletions
diff --git a/src/algebra/dpolcat.spad.pamphlet b/src/algebra/dpolcat.spad.pamphlet
index 64ca21c2..f5004895 100644
--- a/src/algebra/dpolcat.spad.pamphlet
+++ b/src/algebra/dpolcat.spad.pamphlet
@@ -89,9 +89,6 @@ DifferentialVariableCategory(S:OrderedSet): Category ==
weight : $ -> NonNegativeInteger
++ weight(v) returns the weight of the derivative v.
-- Example: weight(v)
- coerce : S -> $
- ++ coerce(s) returns s, viewed as the zero-th order derivative of s.
- -- Example: coerce('s); differentiate(%,5)
add
import NumberFormats
coerce (s:S):$ == makeVariable(s, 0)