New answers tagged rule
2
votes
Accepted
Delayed rule at StringReplace
Yes, RuleDelayed has the attribute HoldRest, which means that the rule isn't evaluated before evaluating the whole ...
- 24.4k
0
votes
Accepted
Same code behaves differently as a pure function and a function, and insider another function
That's due to the renaming mechanism of nested scopings.
When evaluating Transformer2[algebra_] := , the local variable algebra ...
- 2,208
0
votes
Same code behaves differently as a pure function and a function, and insider another function
This doesn't really seem to have to do with Function versus SetDelayed, so it might warrant a separate question. Rather then ...
- 24.4k
6
votes
Accepted
How to force Mathematica to simplify in terms of half angles?
Clear["Global`*"]
expr = Sinh[x]/(Sqrt[2] Sqrt[1 + Cosh[x]])
(expr /. x -> 2 θ // TrigExpand //
Simplify) /. θ -> (x/2) // PowerExpand
Sinh[x/...
- 41.5k
3
votes
Smart way to remove rules from lists, leaving just values, specifically from FindMinimum output
We could also employ a deconstructing function:
f[a_?NumericQ] := a
f[a : {__Rule}] := Last /@ a
Examples:
...
- 47.6k
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