Repeat

Dear Alls,
(setq a 10 b 100)
(repeat 4 (setq a (+ a 10)) (setq b (+ b 100))) return 500
Can you give me how to elaborate this function to got 500
Thanks for your reply
Best regards
Ade Suharna

 

Ade,

this function does the following: add 10 to var a 4 times, that gives 50. Add 100 to variable b 4 times, gives 500. So aou have after the repeat command: a=50, b=500.
And in addition repeat returns the result of the last calculation within the repeat function, that is the last (+ b 100) and that is 500.

bob.at

 

Hi bob,
You mean "add 100 to variable b 4 times ,gives 500" is
100 ( 100 + 100 + 100 +100) = 500 =====> this you mean !

Add 100 to variable b 4 times, gives 500. So aou have after the repeat
command: a=50, b=500.

the repeat function, that is the last (+ b 100) and that is 500.

 

you 've got it

bob.at

 

Hi bob,thanks a lot for comment,now I understand it