# Tag Info

## New answers tagged evaluation

### Mathematica doesn't evaluate an expression

I think your expression E[t] inside Solve should be Exp[t]. Try this instead, where I ...
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### How to Thread lists elementwise with the If function?

Inner is more suitable for this task then Thread. ...
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### How to Thread lists elementwise with the If function?

Just another way using MapApply: ...
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Accepted

### How to Thread lists elementwise with the If function?

Thread doesn't hold its arguments unevaluated. In Thread[If[#1 > #2, 1, 0] &[list1, list2]] the "body", ...
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1 vote

### Replacement inside held expression

Trott-Strzebonski is great, but there is a case when some additional trick is required. At least I couldn't figure this out any other way... Consider this slightly silly example. You have some ...
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Accepted

### Replacing symbolic variables inside of a compile

It's not really an error, only a warning message, if w is atomic. It's not an error in the sense that w[[1]] is the result of <...
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### Replacing symbolic variables inside of a compile

This would fix the issue (it might not be the cleanest solution though) ...