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c++ Programming Glossary: exponent32-bit to 16-bit Floating Point Conversion http://stackoverflow.com/questions/1659440/32-bit-to-16-bit-floating-point-conversion this question std frexp extracts the significand and exponent from normal floats or doubles then you need to decide what to.. floats or doubles then you need to decide what to do with exponents that are too large to fit in a half precision float saturate.....
biggest integer that can be stored in a double http://stackoverflow.com/questions/1848700/biggest-integer-that-can-be-stored-in-a-double 52 bits explicitly stored in the mantissa and then the exponent in effect giving you another one. 2^53 obviously can be stored.. way of looking at it once the bias has been taken off the exponent and ignoring the sign bit as irrelevant to the question the.. is a power of 2 plus a 52 bit integer multiplied by 2^ exponent 52 . So with exponent 52 you can store all values from 2^52..
How can I write a power function myself? http://stackoverflow.com/questions/2882706/how-can-i-write-a-power-function-myself in a loop when I wanted to do a power with a non integer exponent like 5 4.5 or negatives 2 21 and I went crazy So how can I write.. powers with the same base is equivalent to add their exponents. With all the above you can Decompose the exponent in a integer.. their exponents. With all the above you can Decompose the exponent in a integer part and a rational part . Calculate the integer..
Why was std::pow(double, int) removed from C++11? http://stackoverflow.com/questions/5627030/why-was-stdpowdouble-int-removed-from-c11 from C 11 While looking into Efficient way to compute p^q exponentiation where q is an integer and reviewing the C 98 and C 11.. to ensure that your implementation taking an integral exponent gives the same answer as the implementation taking a floating.. same answer as the implementation taking a floating point exponent the optimization is often slower. As a demonstration the following..
How computer does floating point arithmetic? http://stackoverflow.com/questions/6033184/how-computer-does-floating-point-arithmetic result The leftmost bit is the sign the next eight are the exponent and the remaining bits are the fraction. In between the exponent.. and the remaining bits are the fraction. In between the exponent and the fraction is an assummed 1 that is always present and..
How does Excel successfully Rounds Floating numbers even though they are imprecise? http://stackoverflow.com/questions/6930786/how-does-excel-successfully-rounds-floating-numbers-even-though-they-are-impreci 10 to some positive integral power. Dealing with overflow exponent 308 is an exercise left to the reader. double pow10 unsigned.. an exercise left to the reader. double pow10 unsigned int exponent double result 1.0 double base 10.0 while exponent 0 if exponent.. int exponent double result 1.0 double base 10.0 while exponent 0 if exponent 1 0 result base exponent 1 base base return result..
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