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- What is the difference between float and double? - Stack Overflow
As the name implies, a double has 2x the precision of float [1] In general a double has 15 decimal digits of precision, while float has 7 Here's how the number of digits are calculated: double has 52 mantissa bits + 1 hidden bit: log(2 53)÷log(10) = 15 95 digits float has 23 mantissa bits + 1 hidden bit: log(2 24)÷log(10) = 7 22 digits
- Ranges of floating point datatype in C? - Stack Overflow
float has 24 significant binary digits - which depending on the number represented translates to 6-8 decimal digits of precision double has 53 significant binary digits, which is approximately 15 decimal digits Another answer of mine has further explanation if you're interested
- How to correctly and standardly compare floats? - Stack Overflow
bool areEqualRel(float a, float b, float epsilon) { return (fabs(a - b) <= epsilon * std::max(fabs(a), fabs(b))); } This is the most suitable solution for my needs However I've wrote some tests and other comparison methods I hope this will be useful for somebody areEqualRel passes these tests, others don't
- How to use % operator for float values in c - Stack Overflow
consider : int 32 bit and long long int of 64 bits Yes, %(modulo) operator isn't work with floats and double if you want to do the modulo operation on large number you can check long long int(64bits) might this help you
- java - What is the difference between the float and integer data type . . .
float stores floating-point values, that is, values that have potential decimal places; int only stores integral values, that is, whole numbers; So while both are 32 bits wide, their use (and representation) is quite different You cannot store 3 141 in an integer, but you can in a float Dissecting them both a little further:
- floating point - What range of numbers can be . . . - Stack Overflow
For a given IEEE-754 floating point number X, if 2^E <= abs(X) < 2^(E+1) then the distance from X to the next largest representable floating point number is:
- Why are floating point numbers inaccurate? - Stack Overflow
32-bit "single precision" float: 9 19999980926513671875 64-bit "double precision" float: 9
- How are floating point numbers stored in memory? - Stack Overflow
There are a number of different floating-point formats Most of them share a few common characteristics: a sign bit, some bits dedicated to storing an exponent, and some bits dedicated to storing the significand (also called the mantissa)
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