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Mariano


Universidad de Oviedo

Last seen: 3日 前 |  2014 年からアクティブ

Followers: 0   Following: 0

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Spain

Programming Languages:
MATLAB
Spoken Languages:
English

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質問


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 ...

4日 前 | 0 件の回答 | 0

0

回答

質問


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...

約2年 前 | 2 件の回答 | 0

2

回答

質問


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...

約5年 前 | 1 件の回答 | 0

1

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回答済み
A 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 ...

5年以上 前 | 1

回答済み
Numerical integration: quadgk vs integral
Thanks a lot for your answers. They have been very helpful. Best wishes, Mariano

5年以上 前 | 0

質問


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...

6年弱 前 | 0 件の回答 | 0

0

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Strange (lack of) round-off error using norm
I should have said version and computer: R2018b on Windows 64bits.

約6年 前 | 0

質問


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...

約6年 前 | 1 件の回答 | 0

1

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I 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...

6年以上 前 | 0

質問


I do not like this
>> [1 2].*[1;2] ans = 1 2 2 4 I prefer the error message!

6年以上 前 | 1 件の回答 | 0

1

回答

質問


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...

10年弱 前 | 2 件の回答 | 2

2

回答