problem with loop while

Hello, I have a problem with a loop. I have a data freq_nat(2,2)=2.5 which depends from an other data Jv=9000 I want 1.45<freq_nat(2,2)<1.65 so i did

while freq_nat(2,2)<1.65 & freq_nat(2,2)>1.45
  Jv=Jv+1
end
Jv

Answer 1

[James Tursa]

You never change the value of freq_nat(2,2) inside your while loop, so if the while condition is true at the start of the loop, it will always be true since you never change its value, resulting in an infinite loop. You need to either change freq_nat(2,2) inside your loop or alter your while test condition.

[salim chaibi]

sorry i didn't understand I change my code to be more esthetic. So while freq_nat(2,2)<1.65 Jv=Jv+1 end Jv

What I have to do please ?

[Jan]

We cannot guess this. It depends on what you want to achieve. What is Jv? Why to aou increase inside the loop? The loop runs infinitely, because freq_nat(2,2) will stay smaller than 1.65 for ever. Incrementing Jv does not change anything in this condition.