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I have a function of the following form: $$f(x) = a_0 + a_1 x + a_2 x^2 + ... + b_1 x log x + b_2 x^2 log x...
Asked on 09/29/2021
1 answerWhen trying to plot a derivative of a function, (I take Sin as a simple example), the naive approachPlot[D[Sin[x], x], {x, 0, 2 π}]fails. One can work around this...
Asked on 09/29/2021
1 answerIt seems like there is some sort of evaluation overhead related to the ResourceFunction wrapper that I'd like to avoid. This is especially pronounced for functions with attributes. Take, for...
Asked on 09/28/2021
1 answerYes I know there is no built-in native function called SymbolQ (but JavaScript does). However, could one be simulated to work for most cases? I often rely on objectName[symbol] and...
Asked on 09/28/2021
4 answereveryone! I'm a bit new to Mathematica. Could you help me plot this:TheoreticalT[n2_, k2_, w_] := (2*cn2[n2, k2]*(n1 + n3)*E^( I (2...
Asked on 09/28/2021
0 answerI would like to use the result from a dynamic matrix for calculation, but I don't know how to return a global variable from manipulate. Please help me, I'm new...
Asked on 09/28/2021 by Quang Trần Minh
0 answerWhen I use the below script to solve an equation and plot the solution, the plot shows some discontinuous lines. For example at point $xapprox0.25$ the solver cannot find...
Asked on 09/28/2021 by Alex Stark
1 answerFor some time I have been using EllipticTheta[3,-,-] functions, and to me it seems that Mathematica is really not handling them in the best way. Below are two of the...
Asked on 09/27/2021
0 answerI am trying to solve the equations below to find the breakthrough curve in an adsorption process:∂C/∂t+u* ∂C/∂z+ρ/ϵ * ∂q/∂t= 0∂q/∂t= -Ks * (q-(qm* b*C)/(1+ b*C))the IC and...
Asked on 09/27/2021
1 answerI have a list of polynomials, many of them are equals up to some constants. For instance I have:-(1/4) (nn[2] + nn[8]) (mm[101] - 2 nn[107]) 1/4 (nn[2]...
Asked on 09/27/2021
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