how can I improve my looping script?

Question

Young Lee 2018-10-27

0
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https://ww2.mathworks.cn/matlabcentral/answers/426394-how-can-i-improve-my-looping-script

评论： madhan ravi 2018-10-30

hey guys, im kind of new to matlab and practicing with code. This forloop only allow first input to be used with +4 iterations I want to allow user to choose 3 inputs into my forloop or if possible, how do I write the same while loop as well

a = input('Please choose 1st number','s');

for x = str2num(a):str2num(a)+4;

3*sqrt(25+10*sqrt(5).*(x.^2))

end

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Kevin Chng 2018-10-27

在 MATLAB Online 中打开

Not clear with your explanation.

a(1) = input('Please choose 1st number','s');
a(2) = input('Please choose 2nd number','s');
a(3) = input('Please choose 3rd number','s');
for i=1:1:numel(a)
for x = str2num(a(i)):str2num(a(i))+4;
   3*sqrt(25+10*sqrt(5).*(x.^2))
end
end

Do you mean this?

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Answer 1

madhan ravi 2018-10-27

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https://ww2.mathworks.cn/matlabcentral/answers/426394-how-can-i-improve-my-looping-script#answer_343713

编辑：madhan ravi 2018-10-27

在 MATLAB Online 中打开

i=1;                      %while loop way
while i<5 
    %['Input number = ',num2str(i)]
a = input('Please choose  number ')
value(i)=3*sqrt(25+10*sqrt(5).*((a).^2))
 i =i+1; 
end

---------------------------------------------

for i = 1:4                                %for loop way
    %['Input number = ',num2str(i)] %%just for recognition not necessary though
a = input('Please choose  number ')
 value(i)=3*sqrt(25+10*sqrt(5).*((a).^2))
end