Both int and float are 4-byte, 32-bit representations. Why is the range of float greater than int?Float precision is 6~7 bit. 1.66*10^10 's numerical results are not 166 0000 0000, the larger the error.These problems are caused by the way
Float basic data type float's wrapper class float type object contains a float type of fieldIntroduction to Properties
The number of bits used to represent the float value in twos complement form
public static final int SIZE = 32;
Original URL: http://blog.sina.com.cn/s/blog_827d041701017ctm.htmlQuestions raised: 12.0f-11.9f=0.10000038, "Lose The Endless" why?An explanation from MSDN:Http://msdn.microsoft.com/zh-cn/c151dt3s.aspxWhy floating-point numbers may lose precision
First, only string is associated with the encoding;
When converting between byte and other types, be aware of big or small endpoints.
Encoding: Ascii Unicode gbk utf-8 et cetera
A byte of 8 digits can be composed of two 16-digit (0XFF), a 16-bit
Sorry, I used such a "two" question, but I hope the content is not too much.Actually, those who have learned programming are not familiar with these three things. Int is also called an integer. In. net, it refers to int32, which is a 32-bit signed
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
Let's talk about the binary algorithm in the computer:
IntegerWe should be familiar with the binary algorithm of integers, that is, dividing them by two to get the remainder, and then sorting the remainder in reverse order. For example, calculate
I don't think many of my friends will use the float type in mysql, especially when we use money, we may use double precision, we know that the float type of mysql is a single-precision floating point type, which may cause data errors accidentally.
I
Think a lot of friends are not how to use the float type in MySQL, especially when it comes to money we may use double precision, we know that the type of float of MySQL is single precision floating point type is careless will cause data
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