Numerical function is one of the commonly used functions, and it is also a must for learning mysql. The commonly used ones are as follows: 1. ceil: returns the smallest integer value greater than a certain number: 2. floor: opposite to the previous one, returns less than a certain number The maximum integer value of the number: 3. Round: Returns the rounded value of a certain value: As shown above, the second parameter of round represents the number of decimal places that need to be retained. 4. Truncate: Returns the truncated value of a certain value: The difference here from round is that regardless of the decimal place that needs to be retained, it will be discarded directly. The same second parameter represents the decimal place that needs to be retained. Note: The above examples are all integers, but these functions can also handle negative numbers in the same way. There are more than these numerical functions, but I personally think these are more commonly used, so only these are recorded. Numerical function is one of the commonly used functions, and it is also a must for learning mysql. The commonly used ones are as follows: 1. ceil: returns the smallest integer value greater than a certain number: 2. floor: opposite to the previous one, returns less than a certain number Maximum integer value: 3. round: Returns the rounded value of a certain value: As above
1. Mysql common basic operation syntax (12)~~Commonly used numerical functions [command line mode] 】
Introduction: Numerical function is one of the commonly used functions, and it is also a must-know when learning mysql. It is commonly used There are the following: 1. ceil: Returns the smallest integer value greater than a certain number: 2. Floor: Contrary to the previous one, returns the largest integer value less than a certain number: 3. Round: Returns the rounded value of a certain number: As shown above, the second parameter of round represents the number of decimal places that need to be retained. 4. Truncate: Returns the truncated value of a certain value: The difference here from round is that no matter what one decimal place needs to be retained, it will be
2. MySQL Numeric Operators and Functions
## Introduction: For ordinary addition and subtraction operations, details will not be given here. To explain, take the following example: mysql> SELECT 3+4;+-----+| 3+4 |+-----+| 7 |+-----+1 row in set (0.03 sec)CEIL and FLOORCEIL are rounded up. As long as there are decimal places, no matter how many, they are directly entered into one place. For example: mysql> SELECT CEIL(3.01);
3. js operation rounding and string segmentation
Introduction: [Rounding] ①parseInt (parse the integer, discard the decimal part, keep the integer part) Syntax: var a =parseInt(5/2); console.log (a) Output 2 ②Math.ceil (round up, if there is a decimal, add 1 to the integer part) Syntax: Math.ceil(5/2) Output 3 ③Math.round (rounded) Syntax: Math.round(5/2) Output 3 ④Math.floor (round down) Math.floo...
4. JS operation rounding and string segmentation
Introduction: [Rounding] ①parseInt (parse the integer, discard the decimal part, keep the integer part) Syntax: var a =parseInt(5/ 2); console.log(a) Output 2 ②Math.ceil (round up, if there is a decimal, add 1 to the integer part) Syntax: Math.ceil(5/2) Output 3 ③Math.round (rounding) Syntax: Math.round (5/2) Output 3 ④Math.floor (round down) Math.floo...
5. python round up ceil round down floor round round
Introduction: python round up ceil round down floor round
6. A large summary of PHP mathematical operation functions, classics worthy of collection, html calling php functions, excel functions, quadratic functions
Introduction: php, function: A large summary of PHP mathematical operation functions. Classics worth collecting: This article summarizes and analyzes PHP mathematical operation functions. Share it with everyone for your reference, the details are as follows: 1. Description of commonly used functions: Abs: Get the absolute value. Acos: Get the arc cosine value. Asin: Get the arcsine value. Atan: Get the arctangent value. Atan2: Calculates the arctangent of a two number. base_convert: Convert the carry method of the number. BinDec: Convert binary to decimal. Ceil: Calculates the smallest integer greater than the specified number. Cos: cosine calculation. DecBin: Convert decimal to binary. DecHe
##7. php common functions-mathematics php common string functions php common class libraries php common English singles
Introduction: php, commonly used: php common functions-mathematics: In the process of learning php, some commonly used functions have been compiled. These are mathematical functions. "; //12//Further rounding method echo ceil(7.9999).""; //8//Testing and rounding method echo floor(7.9999).""; //7//Floating point number
8. Comprehensive methods of rounding to the nearest integer, rounding to integer, ignoring decimals, etc.
Introduction: : A complete collection of integer methods including rounding to the nearest integer, rounding to an integer, ignoring decimals, etc.: Four commonly used methods for PHP integer functions. Four functions are collected below; rounding functions are often used. Today’s small summary Take a look! It’s actually very simple, just a few functions~~ Mainly: ceil, floor, round, intval There are four commonly used methods for PHP rounding functions. The four functions are collected below; rounding functions are often used, today Let’s summarize! It’s actually very simple, just a few functions~~ Mainly: ceil, floor, round, intval, ceil — further rounding instructions float
9. PHP rounding, rounding, rounding up, rounding down, decimal truncation, what does rounding mean? Rounding is the rounding of 100 million excel values
## Introduction: Rounding, php: PHP rounding, rounding, rounding up, rounding down, decimal interception: four commonly used methods of PHP integer function: 1. Direct rounding, discarding decimals, retaining integers: intval( ); 2. Rounding: round(); 3. Round up and add 1 if there are decimals: ceil(); 4. Round down: floor(). 1. intval—convert variables into integer types If intval is a character type, it will be automatically converted to 0. intval(3.14159); // 3intval(3.64159); // 3intval('ruesin10.
PHP paging class imitates google-interview question answers
Introduction: PHP paging class imitates Google-Interview question answer: The written test answer is not very good, especially the JS part, which is also the reason why I haven’t reviewed it for a long time. The computer question is to write an imitation. When I wanted to get the largest integer like 9/2 for the Google pagination class, I couldn't remember the name of the function ceil. I was confused for a long time. In the end, the test program had no errors, but it just couldn't be displayed normally. Later (after returning home), I was confused. After checking, I found out that the statement: for($i=0;$i++;$i<9) was written wrong, so I decided to write it again, so I got the following code: Copy the code and the code is as follows: [Related Q&A recommendations]:javascript - Why did I change speed to Math.round(speed)? Can’t scroll the scroll bar again? php - The ceil() function returned the double typejavascript - How to use .attr() Add attribute value; this value is a variable; how to write the format? What does the ceil() function mean? javascript concept question
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