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Qiandong Dong


Last seen: 2 years ago |  Active since 2019

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Standard deviation can't be output.
clear;clc;close all; %% Parameters p=5; s=5; t=10; for lambda=0.2:0.2:0.2 for n=1:5 pc=80+10*ones(p,s,t);%res...

2 years ago | 0 answers | 0

0

answers

Solved


Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

2 years ago

Solved


Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

2 years ago

Question


How does the following loop turn out to be different from the expected 25?
s=0; I=5; for i=1:I for j=1:i s=s+1 end end value(s)

2 years ago | 1 answer | 0

1

answer

Question


How to display the current result when the program is forced to abort?
How to display the current result when the program is forced to abort? When I use "ctrl+c" to abort the running of program, it d...

2 years ago | 2 answers | 0

2

answers

Answered
Bar plot with a hatched fill pattern
The legend can be also added via legendflex, which will be better.

2 years ago | 0

Question


I used applyhatch_pluscolor to fill the bar chart, but the legend and coordinates text are blurred,
I used applyhatch_pluscolor to fill the bar chart, but the legend and coordinates text are blurred, why?

2 years ago | 1 answer | 0

1

answer

Question


HELP！错误使用 bonmin
提示：info: 'Unknown problem in solver (Turn on 'debug' in sdpsettings) (错误使用 bonmin??*** Error using Bonmin Matlab interface: ***?...

3 years ago | 0 answers | 0

0

answers

Question


Help!!! Why is it prompted that the subscript indices must be positive integer or logical type?
clear;clc;close all; for e=1:0.2:2 n=(e-0.8)/0.2; h(n)=n; end h Why is it prompted that the subscript indices must be pos...

4 years ago | 1 answer | 0

1

answer

Question


How to know which color represents which figure through the legend?

5 years ago | 1 answer | 0

1

answer

Question


help!!!plot problem not a line
clear all a=400; b=2; k=6; v=200; e=2; cp=2; pr=1; w=15; u=0.1:1; p=(2.*a.*v + 2.*b.*v.*w - 2.*cp.*e.*k.*v - a.*b.*pr....

5 years ago | 1 answer | 0

1

answer

Question


help!!! with plot
clear all a=200;b=5;cm=10;cr=3;v=600;k=6;u=0.1;s=0.2;e=2;cp=2;t=1; pr=1:10; r=-(pr*u*(b*cm - a + cp*e*k + b*cp*e*t))/(8*v + 2...

5 years ago | 3 answers | 0

3

answers

Question


how to reduce the time of calling functions

5 years ago | 3 answers | 0

3

answers

Question


Help! x(i,j,k,l) is a continuous variable, how to show its value?
when i run 'x', matlab shows 'OptimizationVariable', no value ,why? the results showed the function value.the model is feasible....

5 years ago | 0 answers | 0

0

answers

Question


HELP！how to show the solution matrix variable x（i，j，k，l）
x（i，j，k，l）is a solution，how to show let's value or how to save it into excel?

5 years ago | 1 answer | 0

1

answer

Answered
HELP!!! how to deal with x(i,j,k,l).*y(j,k,l).*d(j,k)
I see. U cannot times variable(sign) matrix. But how to express large-scale nonlinear function in matlab?

5 years ago | 0

| accepted

Question


HELP!!! how to deal with x(i,j,k,l).*y(j,k,l).*d(j,k)
my function contains some high dimonsional matrix:how to deal with x(i,j,k,l).*y(j,k,l).*d(j,k)? and matlab warnings a argument...

5 years ago | 1 answer | 0

1

answer