I'm trying to get a vector from a loop without doing the linspace function

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Kelsey Pettrone
Kelsey Pettrone 2020-9-6
评论： Matt J 2020-9-6
in the command window I want it to look like this
The vector created using the for loop is:
0 1.2500 2.5000 3.7500 5.0000
here is my code
vector = zeros(1,5);
for i = 0:1.25:5;
vector = i
end
disp(vector)
this only shows the 5 but i want it to display all of them in a line

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回答（2 个）

Matt J
Matt J 2020-9-6
You must tell the code where in vector you want each value placed.
Asad (Mehrzad) Khoddam
vector = zeros(1,5);
j = 1;
for i = 0:1.25:5;
vector(j) = i;
j = j+ 1;
end
disp(vector)
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Asad (Mehrzad) Khoddam
Asad (Mehrzad) Khoddam 2020-9-6
It works well for me.
you can use this code too:
vector = zeros(1,5);
for i = 1:5
vector(i) = 1.25*(i-1);
end
disp(vector)
Matt J
Matt J 2020-9-6
This would be more numerically stable. Note that solutions based on a:b:c are susceptible to floating point errors, e.g.,
>> 0:1.25+1e-14:5
ans =
0 1.2500 2.5000 3.7500

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