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2d
comment How to refer a number in a list with two columns, first one is a number and the second one is empty?
Select[list, NumberQ[#[[2]]] &]
2d
comment How define shortcuts to specific OptionInspector points?
Dynamic[counter, SaveDefinitions -> True] may save the counter; but bear in mind SaveDefinitions is considered a bit dangerous here.
2d
comment How to generate two group of $n$ random numbers in $U(0,1)$ such that sum of these two groups equal?
this, and do a rescale maybe?
2d
comment How define shortcuts to specific OptionInspector points?
I think SelectedCells refers to the cell with the input cursor, or selected via the bracket at the right side of the cell.
Feb
5
comment How define shortcuts to specific OptionInspector points?
This will make a button that sets the label to values specified by t. maybe you can use KeyEventTranslations.tr to make a shortcut for it. t = {"a", "b", "c", "d"}; Button["cell frame", SetOptions[SelectedCells[InputNotebook[]][[1]], CellFrameLabels -> {{t[[1]], t[[2]]}, {t[[3]], t[[4]]}}]]
Feb
5
comment I want to plot a list of points with specified t and x[t] coordinates
ListPlot[Table[{Subscript[t, i], x[Subscript[t, i]]}, {i, 0, 2, 1}], Filling -> Axis] works. Typo (i runs through 0 to 2, not t)?
Feb
2
revised How can I graph this using Mathematica
title typo pf mathematica
Feb
2
awarded  Custodian
Feb
2
reviewed Reviewed How can I graph this using Mathematica
Feb
2
suggested approved edit on How can I graph this using Mathematica
Feb
2
comment keyboard shortcut to invoke Insert new matrix
thanks! and sorry for the singlelaunch trouble
Feb
2
accepted keyboard shortcut to invoke Insert new matrix
Feb
2
comment keyboard shortcut to invoke Insert new matrix
@JasonB works for me, thanks a lot! maybe offer it as an answer and I'll accept?
Feb
2
revised keyboard shortcut to invoke Insert new matrix
deleted 36 characters in body
Feb
2
comment keyboard shortcut to invoke Insert new matrix
@JasonB Yes, I'm aware of that. I can programmatically do the fill all and fill diagonal function in the dialogue box, but the lines between the rows and columns are really nice for my needs and I can not reproduce that without clicking the menu item.
Feb
2
accepted Table not working with Plot
Feb
2
accepted Select equation in a list of conditions
Feb
2
asked keyboard shortcut to invoke Insert new matrix
Feb
2
comment ParametricPlot3D crashes Kernel when called repeatedly in loop
can you try suppressing the output via ;, assign a name to the plot (e.g. with a For[] loop), and export them instead of displaying them in the notebook?
Feb
2
comment Combining two list function (Is it the best way?)
refer to 4994, 61638