how to make a variable to be increasing and decreasing by a specified percentage

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shegmite

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I need syntax to make z to be increasing and decreasing by 10% over 20 sections as inputs and display 20 outputs as shown below :That is first section z = 220(10% increase) , second section = 198 (10% decrease) and so on.
f = 100;
z = 200 ;% how to make it to be increasing and decreasing by 10% each over 20 sections
b = 2; c = 4;
Y = f*b*c*z;
disp(Y);
 
Last edited:

You mean like this?

And, by the way, if you decrease 220 by 10%, you get 198, not 180.

Code: 
z=200;
for i=0 to 19
         if i/2=int(i/2) then  //even
              z=z*1.1
         else
              z=z*.9
         end if;
         disp(z);
next i;
 

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