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 Author Comment/Response Antonio 05/05/12 12:00pm Hello, I am new to mathematica, I have started couple of days ago, but I succeded in doing lot of interesing thigs which I had problems to do with other software. However I am still stuck on programming and variable values assignement. I have a small piece of code alfa = 10.; beta = 10.; i = 3.; (*Evaluation of polynomial of order i*) df = Expand[ Pochhammer[(alfa + 1), i]/i!* Hypergeometric2F1[-i, i + alfa + beta + 1, alfa + 1, 0.5 - x/2]]; (*Evaluation of first derivative of polynomial of order i*) df3 = 1/N[Expand[D[df, x]^2]]; (*Evaluation of the roots of polynomial order i*) root = Solve[ Pochhammer[(alfa + 1), i]/i!* Hypergeometric2F1[-i, i + alfa + beta + 1, alfa + 1, 0.5 - x/2] == 0, x]; (*Save in a the values of the roots of the polynomial*) a = x /. root[[ ;; ]]; (*Defintion of the integrand - This doesn't work, it should make a \ vector integ with the different values a, but doesn't work!*) integ = (Gamma[alfa + beta + 2]*(1 - x)^ alfa*(1 + x)^ beta/(2^(alfa + beta + 1)*Gamma[alfa + 1]* Gamma[beta + 1]))*((df)/(x - a))^2; (*Numerical integration of the integral - This doesn't work since the \ integrand is not properly done*) integr = NIntegrate[integ, {x, -1, 1}]; (*Give in df3Num in place of x the value of a - This doesn't work I \ guess I made a mistake in defining *) df3Num = df3 /. a (*Evaluation of the weight as product of two vector of numbers*) weight = df3Num*integr I am using Mathematica 8. The next step will be the make the code at different values of i, at the moment I am using only one i. However, I am stuck in giving the variables the values, it would be appreaciated some help on this. Thanks a lot Antonio URL: ,

 Subject (listing for 'Basic question on variable values assignment') Author Date Posted Basic question on variable values assignment Antonio 05/05/12 12:00pm Re: Basic question on variable values assignment Bill Simpson 05/05/12 6:33pm
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