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FRANCESCO DE VIVO


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Question


Why I get different results evaluating the same matrix usign the symbolic toolbox and the numerical approach?
clc; close all; clear all; %% model 2 syms Wc dt a q_x q_y q_z Dt f1(a, Wc) f2(a, Wc) f3(a, Wc) % Wc = a^2+wc^2 ...

9 years ago | 1 answer | 0

1

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Question


Hello, I am trying to wright a variable directly on the GPU using the following command:
A5 = parallel.gpu.GPUArray.rand(3000,3000); but I get the following error: Undefined variable "parallel" or class "paralle...

9 years ago | 2 answers | 0

2

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Question


Hello, I am trying to solve this problem: I have a matrix, for semplicity let's consider a vector and I want to get only the indexes of the element sorted in descending order
% consider the vector A A = [10 9 4 2 7 3 5 1] % what I want is to get only B = [10 9 7 5 1] % or is the same the ind...

9 years ago | 2 answers | 0

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Question


I have to sum two matrix with different dimension, for example Px = [3x3] and Py = [6x6], how can I insert elements on the diagonal of Px between P11 and P22 for example to make it of the same dimension of Py?
% starting matrix Px = [1 2 3; 4 5 6; 7 8 9]; % Py = magic(6); % elements to increase Px: v = [a1 a2 a3]; % Final mat...

10 years ago | 2 answers | 0

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