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zilai si


Last seen: 4 years ago |  Active since 2019

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Question


select certain matrix elements
hello,everyone i just want to ask how to select eg the 1-10 and 20-30 rows elements in the first column. like A(1:10 and 20:3...

5 years ago | 1 answer | 0

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answer

Question


classify array elements without so many if statement
hello,everyone Now i have an array A with double element between 0 to 8 ,now i want to sort them with interval length 0.5 ,i.e...

5 years ago | 2 answers | 0

2

answers

Question


how to plot x-axis only
hello, everyone, i wonder how to plot a gragh like this: with x-aixs only and two directions

5 years ago | 1 answer | 0

1

answer

Question


why no statistic in workspace
Hello, everyone. I have a strange problem. I write a function function cubic_cardinal_Bspline_interpolation(f, x_l, x_r) and...

5 years ago | 1 answer | 0

1

answer

Question


randomly generate point satisfying quations
hello, everyone. I wonder if there is any way to randomly generate 50 points satisfying the following equaiton?

5 years ago | 1 answer | 0

1

answer

Question


how to plot symbolic equation
hello, everyone. I wonder how to plot a symbolic equation like this:

5 years ago | 1 answer | 0

1

answer

Question


is there such a matrix operator
Hi, everyone. IF Let X = [x1 x2 x3], Y = [y1 y2 y3], is there any operator to get x1y1+x2y2+x3y3?

5 years ago | 1 answer | 0

1

answer

Question


set figure title in a loop
Hello everyone, I want to save figure in a loop like this: for N = 1:10 saveas( gcf, 'TruncatedPowerFunc_N','epsc'); but the ...

5 years ago | 1 answer | 0

1

answer

Question


set the spacing between sublots
hello, everyone. Here i'm trying to plot a graph like this: For now i have got a graph like this: The problem is how to ...

5 years ago | 1 answer | 1

1

answer

Question


how to set graph size
hello everyone, I wonder how to change a graph like this: into a graph like this ...

5 years ago | 1 answer | 0

1

answer

Question


symbol function and nomal function
Hello everyone, we can define a funciton using function [y1,...,yN] = myfun(x1,...,xM) and also define a symbol functioon u...

5 years ago | 1 answer | 0

1

answer

Question


how to plot such a graph in matlab?
Hello every, I want to plot a graph like this : But it's kind of diiferent with the usual function image using plot(x,y); Ho...

5 years ago | 1 answer | 0

1

answer

Question


how to preallocate a figure handle?
Hello everyone, I wonder how to preallocate the array G whose element is figure handle like this? for i = 1 : 4 G(k) = plot(a...

5 years ago | 1 answer | 1

1

answer

Question


what's the difference
I want to piecewise plot a interlolation function. When I input the nodes like this X = -1:0.1:1; N = length(X); the graph i...

5 years ago | 1 answer | 0

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answer