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Jul
10
comment Inverting matrix of unknown size
In the example you updated, again where did Y(i) come from? is it just a symbol? or is there an array somewhere Y={....} where the "i" is the index there? Also you say "i" is the row number, but you show Y_1 sitting in the 7th row, not the first row? I am still confused. sorry
Jul
10
comment Inverting matrix of unknown size
I do not understand what you have there, so can't help. I do not know what Y_i supposed to mean. And do not know what R_j suppose to mean. Where did these come from? What is "i" there? what is "j" ? your question is fully described well to answer it (for me at least)
Jul
10
comment Inverting matrix of unknown size
Ok, please then try it again using KroneckerDelta[] function. Again, using symbol from the pallet does not mean anything. It is just a symbol.
Jul
10
comment Inverting matrix of unknown size
Mathematica does not know what these symbols mean mathematically. there are just symbols. If you want actual dirac delta, you should use DiracDelta[] btw, you might want to add space here "[Rho][Delta]" to make it "[Rho] [Delta]" just in case.
Jul
10
comment Can I get rid of the “learning bar”?
@Szabolcs I did not try the other method that changes files manually, as I was not sure I am allowed to. I'd rather see if I can change it in option inspector if possible first. It will not accept the change in OptionInspector, it stays stuck at "Normal", will not change to "Generic"
Jul
10
comment Can I get rid of the “learning bar”?
@Szabolcs fyi, I tried the option inspector method shown in that post you refer to, and it does not work. Can't edit the WindowFrame. Is there a way to do this in version 10, using optionInspector is the question
Jul
10
comment Can I get rid of the “learning bar”?
I am glad you asked this. I was trying for sometime to find a way to remove it to get more space also. The banner on my version is even larger than what you show. About 50% larger I would say
Jul
10
comment Can the banner in the Home Edition be removed?
fyi, the above method does not work in V10. Not able to change it in option inspector. Will not let me change it.
Jul
10
comment Combining Plot and ListPlot in a manipulation
try f[x_, a_, b_, c_] := x^2 + a + b + c; Manipulate[ Show[Plot[f[x, a, b, c], {x, 0, 1}], ListPlot[{{0, 0}, {1, 1}, {2, 2}}], PlotRange -> All], {a, -1, 1}, {b, -1, 1}, {c, -1, 1}] It is better to put all functions inside Initialization though, like this Manipulate[ Show[Plot[f[x, a, b, c], {x, 0, 1}], ListPlot[{{0, 0}, {1, 1}, {2, 2}}], PlotRange -> All], {a, -1, 1}, {b, -1, 1}, {c, -1, 1}, Initialization :> ( f[x_, a_, b_, c_] := x^2 + a + b + c ) ]
Jul
10
comment Will Version 9 functions all work in Version 10?
It seems the added Quantity to the result. So now one needs to do DateDifference[{2014, 1, 1}, {2014, 1, 2}] == Quantity[1, "Day"] which returns True
Jul
10
comment Will Version 9 functions all work in Version 10?
can you please post small example?
Jul
10
comment Why is Return not forcing an exit from my function?
Do Return[100, Module] Not just Return[100] see mathematica.stackexchange.com/questions/44585/… for more information
Jul
10
comment Settings to disable global scope
If you use LocalizeVariables -> False, then variables associated with the controls will have global scope. x = 10; {Manipulate[x, {x, 0, 40}, LocalizeVariables -> False], Dynamic[x]} By default Manipulate uses LocalizeVariables -> True Is this what you needed?
Jul
10
comment Replace interior of matrix with zeros
@Kuba good point, easy to fix, will do in sec
Jul
10
comment Plot integration curve of a system of ODEs
Please do not include the In[] and Out[] in the code, as it makes it hard to copy/paste as is.
Jul
10
comment Transparency rendering problems in Mathematica 10 (Mac)
it sounds like it I assume as I do not see the result you show on my windows 7 system.
Jul
10
comment Transparency rendering problems in Mathematica 10 (Mac)
I do not get any spots, using V10, windows 7 !Mathematica graphics
Jul
10
comment How to get the new font in Mathematica 10?
fyi, I personally do not like the default style sheet used in V10 and also in V9. I do not like the fonts used in these at all. First thing I do, is switch Default.nb to use Default_8.0.nb instead. I find The old fonts used in Mathematica much better for reading.
Jul
10
comment How to get the new font in Mathematica 10?
WHat does your DefaultStyleDefinitions say in advanced preferences? (ps. I am not sure I understand what you mean by I also deleted my entire Library/Mathematica The default style sheet should use Default.nb
Jul
9
comment How to add texture to solid Graphics3D object such as cylinder?
@Kuba I actually thought about this, but the top/bottom faces will be different, and more important, I am not sure it is efficient, since I am rendering a 3D object (cylinder) in addition to the texture itself. I am trying to see if I can make a circle with same texture and add these to the ParametricPlot3D to build the cylinder manually. If all else fails, will use what you suggested.