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warnerchang


Last seen: 7 days ago Active since 2021

Never be afraid to try something new

Programming Languages:
MATLAB
Spoken Languages:
English

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  • Cody Problems in Japanese Master
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Question


How to plot a 3D disk with several holes quickly?
I used "patch" to plot a 3D disk with single central hole successfully, however, I do not know how to plot a 3D disk with severa...

3 months ago | 0 answers | 0

0

answers

Question


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?

5 months ago | 1 answer | 0

1

answer

Question


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...

6 months ago | 1 answer | 0

1

answer

Question


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...

6 months ago | 1 answer | 0

1

answer

Question


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 ...

6 months ago | 2 answers | 0

2

answers

Question


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

6 months ago | 2 answers | 0

2

answers

Question


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...

6 months ago | 1 answer | 0

1

answer

Question


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?

6 months ago | 1 answer | 0

1

answer

Question


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 ...

6 months ago | 1 answer | 0

1

answer

Question


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)=[];

6 months ago | 1 answer | 2

1

answer

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文字列の最初と最後の文字だけ抜き出しましょう。
文字列の最初と最後の文字をつなげて返すような関数を作成しましょう。 もし文字が一つしかない場合、その文字は最初と最後の文字のため、関数はその文字を二回返すようにしておきましょう。 例: stringfirstandlast('borin...

9 months ago

Solved


対称で、n*2n のサイズの行列を作成しましょう
サイズが n*2n の "mirror" 行列(対称行列)を作成しましょう。 例: n=2 の場合、以下のような出力を返します。 m = [ 1 2 2 1 1 2 2 1 ] n = 3 の場合、以下のよう...

9 months ago

Solved


英語の文章内の母音を取り除くコードを書きましょう。
与えられた英語の文章内の母音を取り除きましょう。 例: 入力 s1 が 'Jack and Jill went up the hill' の場合、 出力 s2 は 'Jck nd Jll wnt p th hll' * (英語版) ...

9 months ago

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