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warnerchang


Last seen: Today Con actividad desde 2021

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Never be afraid to try something new

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How to make a graph (or part of a graph) of space from a given equation or inequality
Anything like this: phi=0:0.1:pi; theta=0:0.1:pi/2; [phi,theta]=meshgrid(phi,theta); x1=4.*sin(phi).*cos(theta); y1=4.*sin(...

alrededor de 2 meses hace | 0

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what happens behind "/"
[2:6]/[3:7] Ans = 0.8148 what happens behind this operation? Is there any algorithm?

6 meses hace | 2 respuestas | 0

2

respuestas

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Limit angle in [-90, 90] degree
As I was using ode45 to solve ODEs, I do not know to limit the result in [-90,90] degree. Anyone may provide some help?

alrededor de 2 años hace | 1 respuesta | 0

1

respuesta

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label is not at the center of axes
when I was plotting a 3D line, I tried to use xlabel/ylabel to make a axis label. However, I found these labels are not at the c...

alrededor de 2 años hace | 1 respuesta | 0

1

respuesta

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how can I change lighting using codes?
Now, I plot a figure, however, it is dark. And I use the button to change the lighting, I am wondering whether there exists a me...

alrededor de 2 años hace | 1 respuesta | 0

1

respuesta

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How to define a colormap easily
I tried to define a colormap, however it is rather difficult, because I have to choose a value and then I see what the color it ...

alrededor de 2 años hace | 2 respuestas | 0

2

respuestas

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what is the time complexity of function 'reshape'
anyone knows what is the time complexity of function 'reshape'?

alrededor de 2 años hace | 2 respuestas | 0

2

respuestas

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why use limit function goes wrong
syms x f=(2/pi*atan(x))^x; limit(f,x,inf,'right') Prompt:Inconsistent limit direction. however,I tried to transform the f...

alrededor de 2 años hace | 1 respuesta | 0

1

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How to adjust the brightness of an image in YCbCr color space
anyone know how to adjust the brightness of an image in YCbCr color space?

alrededor de 2 años hace | 1 respuesta | 0

1

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Why two methods give different results, and which is correct?
I use ode15i and ode45 to solve an implicit function, however two methods give different results, which is correct? clear clc ...

alrededor de 2 años hace | 1 respuesta | 0

1

respuesta

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why it will go wrong using 'cell'?
Recently, I ran two codes as follow: a={[],[]};a{1}(a{1}==3)=[]; % it will go wrong b=cell(1,2);b{1}(b{1}==3)=[];

alrededor de 2 años hace | 1 respuesta | 2

1

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