Mariano
Universidad de Oviedo
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MATLAB
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Preconditioning in fmincon
I have a similar question. I am using fmincon with the algorithm trust-region-reflective and the option HessianMultiplyFcn, so ...
circa un mese fa | 0
Domanda
Strange behaviour of plot
When I do the following plot in R2025a, I do not see the line. (Here the code runs under R2024b) plot([0,eps,1],[0,eps,1])
5 mesi fa | 2 risposte | 0
2
risposteDomanda
Memory usage of decomposition
Hello, Consider linear systems Ax=b_i with A sparse and positive definite and several right hand sides b_i. In the experiments ...
9 mesi fa | 1 risposta | 0
1
rispostaDomanda
Use sendmail with Reply To
Hello, I want to add a "Reply To" field in an email sent with Matlab's sendmail. I have tried setpref('Internet','Reply_To','m...
quasi 3 anni fa | 2 risposte | 0
2
risposteDomanda
Where do all these digits come from?
Hello I know Matlab stores 52 bits which roughly means 16 decimal places. But if I ask for 40 digits of pi, I get 40 digits, th...
oltre 5 anni fa | 1 risposta | 0
1
rispostaA doubt regarding a simple For loop indexing for certain rows only.
a = [1 2 3 4 % start point A 1 2 4 5 % delete 1 2 4 5 % delete 1 2 4 5 % delete 1 ...
oltre 6 anni fa | 1
Numerical integration: quadgk vs integral
Thanks a lot for your answers. They have been very helpful. Best wishes, Mariano
oltre 6 anni fa | 0
Domanda
deval and fplot give strange warnings
Hello, I have found the following strange behaviour: 1) First, I solve an initial value problem for an ode numericall (say, w...
oltre 6 anni fa | 0 risposte | 0
0
risposteStrange (lack of) round-off error using norm
I should have said version and computer: R2018b on Windows 64bits.
oltre 6 anni fa | 0
Domanda
Strange (lack of) round-off error using norm
Hello, I have found this behaviour: >> format hex >> p=[sqrt(2) sqrt(2)]*1e3; >> sqrt(sum(p.^2)) ans = 409f400000000001...
oltre 6 anni fa | 1 risposta | 0
1
rispostaI do not like this
Thanks for your answer. I know what I am getting. It is the same I got before with kron when I wanted it. For me .* had always...
oltre 7 anni fa | 0
Domanda
I do not like this
>> [1 2].*[1;2] ans = 1 2 2 4 I prefer the error message!
oltre 7 anni fa | 1 risposta | 0
1
rispostaDomanda
Numerical integration: quadgk vs integral
Hello: I have not been able to find out what is the underlying quadrature formula in Matlab's builtin function integral. I thi...
oltre 10 anni fa | 2 risposte | 2
