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Type: Posts; User: justutiz

1. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

Yes, but dont understand everything. I just need to do a program in few days. This is my first program and I am still learning everything.
2. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

so it is posible to make working with all values, if az i take 0.000000001 then it is not working, so i need to add more 0.00000000000000001 in compare, it is other way?
3. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

so
if ( fabsf(c - a) < 0.000001 ) is the best and shortest way?
4. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

when add one time its true, but when you do it with cycle it looks something like this

a = -0.1 + 0.01000000001 and so on
and then you compare 0 with a it is looks something like this 0 !=...
5. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

Yes, it works, but maybe it is shortes way to compare c-a is 0?
6. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

Yes, but why in my code -0.1 + 0.1 is not 0?
7. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

Im still geting

1 -1 0
1.11 -0.9 0
1.25 -0.8 0
1.43 -0.7 0
1.67 -0.6 0
2 -0.5 0
2.5 -0.4 0
8. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

but abs want me to use int, my a and c is floats
9. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### Re: 0 isn't 0 in C++ math

Im reading, and Im very new in C++, so I dont find how I can do the folowing that a == c, then a and c is floats.
10. ## Thread: 0 isn't 0 in C++ math

by justutiz
Replies
22
Views
6,973

### 0 isn't 0 in C++ math

OK, i have a script, which calculate Y=1/(C-A). C is input, A is intetrval [Ap;Ag] with step Az;
And i have one problem, when c=2, A[-1.5;2.5] with step 0.1, when i want to say that 0 isn't possible...
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