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Questions about the form and content of output returned by Mathematica for a given input or function application. This can include specific differences produced by older versions of Mathematica.
4
votes
Accepted
How to know at which point of a calculation I am while using Table
The simplest way is to put a Print expression into your Table expression.
Table[Print["i = ", i]; foo[i], {i, 0, 10}]
If you only want to see the what is printed while the evaluation is running and …
1
vote
Accepted
Confusing Preemptive Output from Reap-Sow & While Loop
Just drop the call to Print.
With[{n = 3, f = N[Pi], h = 0},
Flatten[
Drop[
Reap[
d = 0;
While[d < (2^n),
Sow[
Extract[
Drop[First[Real …
1
vote
Selecting only list of function output from piecewise function output
With the definition you have given, V isn't set up to thread over lists, which is what you seem to expect it to do. You can make that work that easy enough by giving it the Listable attribute.
SetAtt …
1
vote
Accepted
How to format output numbers like 0.?
Perhaps something like this?
Clear[f]
f[n_, w_Integer /; Positive[w]] :=
PaddedForm[N[n], {w, w},
NumberPadding -> {"", "0"},
NumberFormat -> (Row[{#1, "e", If[#3 == "", "0", #3]}] &)]
Th …
7
votes
Accepted
Adding a label to an expression result
Presuming you only want to this special output to come from computations that bind a variable to the value of the computation, here is one way it can be done by $Pre and $Post:
SetAttributes[saveSet, …
5
votes
Accepted
Read / Write of files which may be in use by other software
Checking that a file is in use by another application is very operating system dependent. As far as I know, Mahtematica doesn't support testing for this in user code.
Reading in a file that is in use …
3
votes
Removing zero dot after solving
Mathematica supports two arithmetic systems, exact arithmetic and inexact arithmetic. Inexact arithmetic subdivides into machine arithmetic and arbitrary precision arithmetic. Machine arithmetic is th …
2
votes
Outputting a fraction on one line with an oblique division sign
Assuming you want your labels inserted into a 2D Graphic, it can be done like this:
With[{n = 3},
Module[{pts, lbls},
SeedRandom@1; pts = RandomReal[1., {n, 2}];
lbls =
Table[
…
2
votes
Accepted
Making loop based off what I can say in words
This answer is concerned about formatting the output is the style shown in the question. I start by generating the list of b values using the method given by Mr.Wizard. …
1
vote
Accepted
How do I interpret two apostrophes in output
You can see how it is interpreted by Mathematica by inactivating the Sin function:
Inactivate[Sin''[x]]
However, you probably shouldn't be seeing things like sin'' and cos'' in your output. …
2
votes
Plot shows up as blank output line
This is not really an answer, but more a query about how accurately the code appearing in the question represents the functions given in the homework assignment.
Are you sure the definitions you give …
1
vote
Accepted
Menu object in a notebook that will print text in a new cell
Framed[
Manipulate[
InputField[Style[txt, "SR", 14, "Output"], FieldSize -> Small],
Pane[Style["Chose a word", "SB", 12], ImageMargins -> {{45, 45}, {0, 5}}],
{{values, StringSplit["the quick …
2
votes
How to convert input expression to FullForm String
Or maybe this way?
SetAttributes[fullFormString, HoldAll];
fullFormString[expr_] :=
StringReplace[
ToString[FullForm[Unevaluated[expr]], OutputForm],
"Unevaluated[" ~~ Longest[u__] ~~ "]" …