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I think I am missing something simple, so I apologize in advance... I have two lists {-1 - $epsilon$ + 1/2 $epsilon^2$ x''[0], 1 - $epsilon$ +...
Asked on 08/10/2021 by dpholmes
2 answerScidraw has suddenly stopped working for me. I get the error FigCompositeElement::objsyntax: Missing or unexpected arguments in FigCompositeElement[CollectGraphicalElements[FigPolygonElement[{Rectangle @@ Transpose[SciDraw`Private`Window$10373[CanvasRegion[]]]}, Flatten[{Layer -> SciDraw`Private`$FigBackgroundLayer, ShowLine -> False, ShowFill -> True, FillColor...
Asked on 08/10/2021
1 answerhttps://reference.wolfram.com/language/Notation/tutorial/NotationSymbolizeAndInfixNotation.htmlNotation[boxes ⟹ expr] set boxes to be parsed to exprI want a simplified notation for entering a TransferFunctionModel by Notaton.But the Notation rule...
Asked on 08/10/2021 by eason
2 answerFive of the 10 actors can only sing, two can only dance, and three can both sing and dance. Now, how many kinds of selection methods are there to perform...
Asked on 08/09/2021
3 answerI want to refer to the actual option values of a function f outside of f, using OptionValue. Since I would use the same reference in different function f, g,...
Asked on 08/09/2021
1 answerI am new to Mathematica and struggling with its syntax.I have a set of equations, which I would like to solve for my unknowns.I would like to...
Asked on 08/09/2021 by Zorg
2 answerThis question has appeared in various forms online, but I have not yet seen a complete answer, so I am posting it here. More specifically, suppose I have a function...
Asked on 08/09/2021 by merlin2011
3 answerI'm trying to construct a series of differential equations that defines the behavior of m mutually interacting species according to the Lotka-Volterra equations. I figure there must be some clever...
Asked on 08/09/2021 by phycobilly
1 answerMMA 10 introduced a new function, which can be very convenient: InfiniteLine. Of course, two infinite lines can be described by different arguments: for example InfiniteLine[{{0,0},{1,0}}] and InfiniteLine[{{0,0},{2,0}}] are...
Asked on 08/08/2021
6 answerI got a problem and have to rewrite the following code and try to make it fast. Does someone have any idea how to solve it?Total@Flatten@MatrixPower[Partition[270^5*Range[270^2],270],12]...
Asked on 08/08/2021 by Hans Peter
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