double value range

1. ScopeThe float and double ranges are determined by the number of digits of the index.The float index has eight digits, while the double index has 11 digits. The distribution is as follows:Float:1bit (symbol bit) 8 bits (index bit) 23 bits (tail

IEEE754 the representation of floating-point numbers. The expression range of float type data in C language is -3.4*10^38~+3.4*10^38. Double is -1.7*10^-308~1.7*10^308,long double for -1.2*10^-4932~1.2*10^4932. Type Number of bits

double and float are floating point types. Doubles (double type) are more accurate than float (single-precision) data and occupy more space. Double precision is twice times that of float, so a double is often used for more precise calculations.

Original text: A brief analysis of the locking problem of SQL Server to prevent the range lock of Phantom read under Serializable isolation levelThe source of this article: http://www.cnblogs.com/wy123/p/7501261.html(It is not the original works

Original text: A brief analysis of the locking problem of SQL Server to prevent the range lock of Phantom read under Serializable isolation levelThe source of this article: http://www.cnblogs.com/wy123/p/7501261.html(It is not the original works

The source of this article: http://www.cnblogs.com/wy123/p/7501261.html(It is not the original works right to retain the source, I my book still far to reach, just to link to the original text, because the following may exist some errors to amend or

Vaguely remember, floating point size seems to have a trap, because the bottom of the binary number can not accurately represent all the decimals. Sometimes there are things that make people feel strange.As in

1. ScopeThe range of float and double is determined by the number of digits of the exponent.Float has an exponential position of 8 bits, and a double has a 11-bit exponent, distributed as follows:Float1bit (sign bit) 8bits (digit digit) 23bits

1. ScopeThe float and double ranges are determined by the number of digits of the index.The float index has eight digits, while the double index has 11 digits. The distribution is as follows:Float:1bit (symbol bit) 8 bits (index bit) 23 bits (tail

First, analyze the characteristics of the basic data type, maximum and minimum values. 1, Basic type: int bits number: + Wrapper class: Java.lang.Integer Minimum: integer.min_value=-2147483648 (-2 of 31 Parties) Maximum value: integer.max_value=