How do I create a vector with a multiply sequence?
3 views (last 30 days)
Show older comments
Can I replace this loop?
vector(1)=100;
for i=2:10
vector(i)=vector(i-1)*0.7;
end
%%vector(10) will be 4.0354
I want to write the sequence , something like this:
vector=100:*0.7:4.0354
possible?
3 Comments
Answers (6)
Andrei Bobrov
on 12 Apr 2012
vector = [1 cumprod(ones(1,9)*.7)]*100;
more variant
o10 = ones(10);
vector = 100*prod(o10 - .3*triu(o10,1));
0 Comments
Jan
on 12 Apr 2012
vector = repmat(0.7, 1, 10);
vector(1) = 100;
vector = cumprod(vector);
Or as one-liner:
vector = cumprod([100, repmat(0.7, 1, 9)]);
0 Comments
Jan
on 12 Apr 2012
An of course:
vector = [100, 70, 49, 34.3, 24.01, 16.807, 11.7649, ...
8.23543, 5.764801, 4.0353607];
This is fast, but not very flexible. :-)
See Also
Categories
Find more on Loops and Conditional Statements in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!