how to make variable changes over a number of times by a specified rate

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segun 2014-4-22

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评论： Jan 2014-4-22

I need syntax to make z increase by 10% five times and then decrease by 10% for another five times. The whole process is repeated 10 times to make a total of 100 inputs and display 100 outputs of Y as shown below : f = 100; z = 200 ;% make it increase by 10% five times, decrease by 10% five times and repeat process 10 times b = 2; c = 4; Y = f*b*c*z; disp(Y);

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Jan 2014-4-22

What is your question? What have you tried so far and which problems occur?

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Answer 1

Star Strider 2014-4-22

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I thought we did this with a different definition of z in your other post.

See if this does what you want:

z = 200.*[1.1.*ones(1,5)  0.9.*ones(1,5)];
z = repmat(z, 1, 10);
   f = 100; b = 2; c = 4; Y = f*b*c*z; disp(Y);
figure(1)
plot([0:size(z,2)-1], Y)
ylabel('Y')
grid