For printf, the length modifier l is ignored in the case of floating point types because float arguments are always promoted to double. Jerry Coffin's answer has more information.

Note that float can approximately represent the latter and still smaller values - it's just about 7 decimals of precision after the first nonzero digit! If you're going to use a fixed epsilon, you …

Add zeros to a float after the decimal point in Python Asked 12 years, 8 months ago Modified 2 years ago Viewed 233k times

[float(i) for i in lst] to be precise, it creates a new list with float values. Unlike the map approach it will work in py3k.

You cannot properly round the number itself, because float (and double) aren't decimal floating-point - they are binary floating-point - so rounding to decimal positions is meaningless. You …

I am wondering what the difference is between these two variables in C: float price = 3.00; and float price = 3.00f; What is the use of suffix f in this case?

Editor's note: If what you are testing comes from user input, it is still a string even if it represents an int or a float. For converting the input, see How can I read inputs as numbers? For ensuring …

Once you have that integer treat it as a string and position the decimal point (moving it from right to left) a number of times equal to the power of ten you multiplied the numerator by. This is a …

C has 2 families of macros in <float.h> to help us. The first set is the number of significant digits to print in a string in decimal so when scanning the string back, we get the original floating point.

I want to print a float value which has 2 integer digits and 6 decimal digits after the comma. If I just use printf("%f", myFloat) I'm getting a truncated value. I don't know if this always happen...