Linked Questions
10 questions linked to/from Head of a MatrixForm expression?
8
votes
2answers
204 views
what does Out store? [duplicate]
I think the following can only be tested in a notebook. (Please correct me if not.)
...
3
votes
0answers
41 views
Out[x] not the same as assigned expression [duplicate]
There seems to be a difference in the way Mathematica assigns a value to a variable and the way it assigns a value to the next Out object. I don't understand why this is happening.
For instance, take ...
48
votes
4answers
10k views
Why does MatrixForm affect calculations?
This is a really newbie question, but it has me confused. Why does this code work without // MatrixForm and doesn't work with ...
44
votes
5answers
1k views
Why is there no PositionFunction in Mathematica?
Too often I have seen the programs of inexperienced users greatly slowed by using Position in an iterative fashion, when far faster would have been to compute a ...
7
votes
3answers
420 views
How can I reproduce the MatrixForm, NumberForm, XyzForm behavior?
I wish to write a function like MatrixForm, that affect only display but not evaluation, i.e. a function that automatically is stripped away from output.
More ...
10
votes
2answers
258 views
Schrödinger's MatrixForm: feature or bug?
Recently I noticed a peculiar behavior of MatrixForm that I failed to find a way to explain. Consider the following example:
...
8
votes
3answers
385 views
Creating a TeXForm/TraditionalForm/etcForm - like function
How could we go about creating a function that behaves like those?
After a while thinking, my best try is with CellPrint printing an ...
2
votes
2answers
250 views
After NumberForm I cannot apply a Sine function. Why?
After NumberForm I cannot apply a Sine function. Why?
This works:
sol1 = x /. Solve[x^2 - 3 == 0, x]
Sin[sol1]
Output = $\{-Sin[\sqrt{3}],Sin[\sqrt{3}]\}$
Also ...
2
votes
1answer
196 views
Revert FullForm back to “normal”
I am trying to find the function that converts the result of FullForm back into a standard pretty looking output. Here is what I mean:
...
3
votes
0answers
28 views
Declare new “Form” wrapper and avoid this wrapper being recorded in Out[…] [duplicate]
When I input
{{1,0},{0,1}} // MatrixForm
and then m = %;, the value that m takes is the ...