if x==2.4 not working

* **TP1=2.4;** *

   for l=1:50
  TP(l)=0.1*l;

if TP(l)==TP1
........................................................

This is a small part of my program. i believe the if statement is not being executed for some reason. Further, if I put it equal to an integer (i.e. TP(l)==2) then it works. I want it to work with 2.4. Please help. If whole of the program needs to be posted, please tell. Thanks. :)

Answer 1

[Azzi Abdelmalek]

read this http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F

You can use some tolerance

out=0
tol=1e-5
for l=1:50
  TP(l)=0.1*l;
  if abs(TP(l)-2.4)<tol
      out=TP(l)
  end
end

[Nabhdeep Bansal]

It worked. Thank You Sir.