difference between .01 and 0.01 in matlab?

Hi!

pls whats the difference between .01 and 0.01 in matlab?

thanks

Answer 1

[Richard Brown]

Readability

Answer 2

[John D'Errico]

Um, zero. As far as MATLAB is concerned, the two are identical. To prove that, I'll do this:

>> hex = sprintf('%bx',0.01)
hex =
3f847ae147ae147b

>> hex = sprintf('%bx',.01)
hex =
3f847ae147ae147b

So the two numbers in hex form are identical. Or look at them using HPF.

DefaultNumberOfDigits 60
hpf(0.01)
ans =
0.0100000000000000002081668171172168513294309377670288085937500

hpf(.01)
ans =
0.0100000000000000002081668171172168513294309377670288085937500

Answer 3

[Image Analyst]

Just a leading zero but essentially they are the same - subtracting them will give a perfect zero (I tried/verified). Perhaps you're thinking of this: http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F

Answer 4

[Rapheal]

im confused because i tried it on 2 different computers with different versions of matlab. On the computer that had Matlab 2012 there was an error while in the other computer with matlab 2007 it ran smoothly.

[Image Analyst]

Tried WHAT on two different computers? What was the error (make sure you copy and paste all the red error text)?

[Walter Roberson]

What is it that you tried, and what error message resulted?