how can I improve my looping script?

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

[Kevin Chng]

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?

Answer 1

[madhan ravi]

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

[madhan ravi]

Is this the one you are looking for? if not let know

[madhan ravi]

If everything is clear then accept the answer so people know question is solved