what floating point number

Package precisenumber;Import java.util.*;public class Precisenumber {public int fore;public int after;public void DTI (double num)//double to int{String numstr = double.tostring (num);String forestr = numstr.substring (0, Numstr.indexof

Article source address: http://blog.csdn.net/lyd518/article/details/7236464 reprint Please indicate the source, respect the author's labor results, thank you!The problem is this:37.5*5.5=206.08(JS figure out is such a result, I rounded to take two

PHP floating point number knowledge This article mainly introduces you to know about PHP floating point numbers. This article describes the critical values of PHP floating point numbers, critical values of PHP numbers, and precision loss. For more

This article describes how to calculate and compare floating-point numbers in PHP and how to obtain an inaccurate integer. The code is very simple. For more information, see This article describes how to calculate and compare floating-point numbers

Summary of JavaScript floating point number and operation Precision Adjustment JavaScript has only one numeric type Number, and all numbers in Javascript are represented in IEEE-754 standard format. The precision of floating point numbers is not

Most languages encounter precision problems when dealing with floating-point numbers, but in JS it seems particularly serious to look at an examplealert(45.6*13);It turned out to be 592.800000000001, and of course the addition would have this

Real data is also known as floating-point numbers or real numbers. In the C language, the real number is only used in decimal. It has two types: decimal decimal form and exponential form. Representation of a real number1) Decimal number

Note that the result of dividing two integers is still an integer, not a floating-point number.   problem Description: Known Celsius temperature (℃) and Fahrenheit temperature (℉) conversion relationship is:                              

The analysis of the storage mode of the floating point number of C + + in memory Any data is stored in binary form in memory, such as a short data 1156, and a binary representation of 00000100 10000100. In the Intel CPU architecture system, the

Floating-point number division: Floating-point division, such as 1/A, should be written as 1.0/a. Otherwise, you can't get the right results. Example: Enter the three-side length of the triangle to find the triangle area. (Set the input a,b,c can

Directory 1. What is a floating point number? 2. IEEE floating point number 3. Transformation between a real number and a floating point number 4. Special values 4.1. Nan 4.2. Infinite

Single-precision floating-point number with 4 bytes (32bit) for floating-point numbers, using the IEEE754 standard computer floating-point number, in the interior is a binary representation, such as: 7.22 with 32-bit binary is not the case, so it

Single-precision floating-point numbers are 4 bytes (32bit) representing floating point numbersUses the IEEE754 standard computer floating-point number, in the interior is uses the binary system to representFor example: 7.22 with a 32-bit binary is

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

Single-precision floating-point numbers are 4 bytes (32bit) representing floating point numbersUses the IEEE754 standard computer floating-point number, in the interior is uses the binary system to representFor example: 7.22 with a 32-bit binary is

Verification number: ^ [0-9] * $ Verify the n-digit number: ^ \ D {n} $ Verify at least N digits: ^ \ D {n,} $ Verify M-N digits: ^ \ D {m, n} $ Verify the number starting with zero or zero: ^ (0 | [1-9] [0-9] *) $ Verify the positive

 Username [\ W \-] {3, 12} 3-12 characters (including English letters, numbers ,'-','_') password [\ X21-\ x7e] {3, 8} 3-8 common characters (0x21 to 0x7e) age 1 [0-2] \ d | \ D {129} maximum years old date (19 | 20) \ D {2} [/\ s \-\.] * (0 [1-9] |

Verification number: ^ [0-9] * $ Verify the n-digit number: ^ \ D {n} $ Verify at least N digits: ^ \ D {n,} $ Verify M-N digits: ^ \ D {m, n} $ Verify the number starting with zero or zero: ^ (0 | [1-9] [0-9] *) $ Verify the positive number of two

Verification number: ^ [0-9] * $ Verify the n-digit number: ^ \ D {n} $ Verify at least N digits: ^ \ D {n,} $ Verify M-N digits: ^ \ D {m, n} $ Verify the number starting with zero or zero: ^ (0 | [1-9] [0-9] *) $ Verify the positive

Verification number: ^ [0-9] * $ Verify the n-digit number: ^ \ D {n} $ Verify at least N digits: ^ \ D {n,} $ Verify M-N digits: ^ \ D {m, n} $ Verify the number starting with zero or zero: ^ (0 | [1-9] [0-9] *) $ Verify the positive number of two