How can I solve this problem in the matlab program ?

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Vuqar Samedov
Vuqar Samedov le 21 Déc 2020
Réponse apportée : Daniel Catton le 21 Déc 2020

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Daniel Catton
Daniel Catton le 21 Déc 2020
I believe your maths is incorrect and that is the first problem.
You get your derivitive of u as du = -4x.dx which is correct. Substituting this into the equation would give you:
With this in mind, you also don't need to substitute u into the matlab script as it is only required for computation by hand (for integration by substitution you would normally select u yourself). Thus, you can get the script:
syms x
f = int(x*exp(-x^2))
which outputs the correct answer.
Hope this helps!

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