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I need to solve the differential equation DSolve[{(1-x)y''[x]==1/5 [Sqrt](1+y'[x]^2),y[0]==0,y'[0]==0},y[x],x] but the result given seems to be incorrect and returns an...
Asked on 08/06/2020 by Mertin
1 answerTossing 4 points on a circle at a time, and calculate the chance of all 4 points on the upper part of the circle. ...
Asked on 08/04/2020 by kile
2 answerHow can we calculate the values for the Gamma function using Quaternions on Mathematica? For example:<<Quaternions`; (* load package *)Gamma[5] = 24N[Gamma[I]] = -0.15495 - 0.498016 IN[Gamma[1 + 2...
Asked on 07/31/2020 by GarouDan
3 answerGiven two matrices $A$ and $B$, their Binomial expansion is, in general, given by (see this page) $(A+B)^n = sumlimits_{k=0, k=n[2]}^n Bigg( sumlimits_{r=0}^k binom{k}{r} A^r B^{k-r}...
Asked on 07/31/2020 by Rob
1 answerI am using PlotRange to clip a GeoGraphics plot so that I can center an area of interest. However, I do this via trial-and-error because I have no idea...
Asked on 07/28/2020 by K7PEH
1 answerI have two lists, which as a simple example can take the form:l1 = {{a1,a2,a3},{b1,b2,b3},{c1,c2,c3}}l2 = {{a1,n1},{c1,n2}}How can I merge them by the first element in the list to...
Asked on 07/27/2020
1 answerc = 5.; b = 3.; a = 2.; len = 7.5;u[t_] := Reduce[ NSolve[(2 c + a Cos[t] - b Cos[u[t]])^2 + (a...
Asked on 07/25/2020
2 answerI have defined a set function and an average. If you need help understanding my definitions, let me know. I will do my best to explain.QuestionHow do...
Asked on 07/24/2020 by RajanArak
1 answerI have the following output obtained after optimizing the positions of geometry using Minimizecommand{x[1] -> 1011.07, y[1] -> 1127.56, z[1] -> 420.922, x[2] -> 940.095, y[2] ->...
Asked on 07/22/2020 by Natasha
3 answerMost of the time when I use FindIntegerNullVector with inexact numbers, I get useful results.But occasionally, it seems to miss finding a simple null vector.Example:a = 13.4414592345679;b...
Asked on 07/22/2020 by Stanley Rabinowitz
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