Problem of subtraction in C

[Camryn]

Hello friends i have started to learn C programming and i am very much familiar about the data types like integer also know a little about floating point variables. But the floating point is troubling me. I have made a simple program for subtracting two numbers but it is troubling me because the output what i get has six digits after the decimal point so please help me.

[absolute55]

To be more precise on your problem if you are can post your program than i can get the clear picture of your problem or just give me some more details about the programs else state the data type or the function you are using in the program. But its good if you post the whole program. Hope you will post it.

[Reegan]

If you are facing a problem in the floating point variable then let me tell you one thing that this is the easiest stuff in the C language. Try to use the %.2f in your program. This will truncate number of digits appearing after the the decimal to only two numbers for example if you are getting the output as 100.000000 then you will get the new output to 100.00 .

[Modifier]

This is very simple because you just have to use the %2f in your program. The output you are getting will automatically show only 2 digits after the decimal point . So please use this in built function it is as simple as that, Similarly if you want three numbers after the decimal point use %3f and %4f as you require.

[Camryn]

As some of you guys had asked me to explain the programs in more detail so i am trying to give you some segments of the program.
Consider:
I am having to numbers say it as n1, n2 which are declared as float
float n1= 50.50
float n2=100
Now, When i subtract
float n3=n2-n1
i am getting :49.500005
but i want it as simply 49.50

I think that my problem is somewhat clear now so please help me

[absolute55]

Hi, I got your point and will definitely help you i think you are not aware of the % operator in C You just have to use this operator while you are try to display the decimal digits in a c program.
Just change the out put statement similar to the one below:
printf("The subtarction of the two number is equal to: %2f" ,n3);