# examples of rounding whole numbers

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### Calculation of floating-point numbers in PHP and the solution of inaccurate rounding, rounding inaccurate _php tutorial

Calculation of floating-point numbers in PHP and the solution of inaccurate rounding, rounding inaccurate Comparison of floating-point calculation resultsA floating-point calculation example is as follows: Copy the Code code as follows:\$a = 0.2+0.7;

### Calculation and comparison of floating-point numbers in PHP and the solution of inaccurate rounding

Comparison of calculation results of floating point numbersA floating-point count example is as follows: The code is as follows: \$a = 0.2+0.7; \$b = 0.9; var_dump (\$a = = \$b); The result is: BOOL (false). In other words, 0.2+0.7 's

### Numbers, cardinality and representations

Numbers, cardinality and representations integerIntegers are these familiar numbers ...,-1, 0, +1, +2, .... Integer values are also referred to as ' complete ' and are divided into positive numbers (1 to infinity), negative numbers (-1 to

### Examplesof math.random () random numbers in JavaScript

Definitions and usage The random () method can return a random number between 0 ~ 1. Grammar Math.random () return value A pseudo random number between 0.0 ~ 1.0. Open node, enter terminal command line mode, enter Math.random ():

### Talk about computer and network common rounding: Binary (binary), Decimal, and Hex (He

Talking about computer and network common carry System: Binary (binary), decimal and hex (hexadecimal)Binary, decimal, and hexadecimal, these binary decimal digits we are most familiar with the following 10 numbers that are first approached from pre-

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### Calculation and comparison of floating point numbers in PHP and the solution of inaccurate method _php Foundation

Comparison of calculation results of floating point numbersA floating-point count example is as follows: Copy Code code as follows: \$a = 0.2+0.7; \$b = 0.9; Var_dump (\$a = = \$b); The result is: BOOL (false). In other

### 20145225 Interim Summary of the basic design of information security system

Mid-term summary One, commonly used command summary man-k:Commonly used to search, combined with pipe use. Examples are as follows:Man-k K1 | grep K2 | grep 2The search contains both K1 and K2, and is part of the system call.The last number means

### A comprehensive introduction to JavaScript practical skills and single vertical bar _javascript skills

JavaScript itself can be regarded as a simple language, but we also continue to use the wisdom and flexibility of the model to improve it. Yesterday we applied these patterns to the JAVASCRIPT framework, and today these frameworks drive our WEB

### Conversion between binary, octal, decimal, hexadecimal

One, the conversion between decimal and binary (1) Decimal conversion to binary, divided into integers and fractional parts ① whole number of parts Methods: In addition to the 2 method, that is, each time the integer part divided by 2, the remainder

### Basic PHP Tutorials

Binary, octal, decimal, hexadecimal conversion one, decimal and binary conversions (1) Decimal conversion to binary, divided into integers and fractional parts ① whole number of parts Methods: In addition to 2, the reverse arrangement, that is,

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