rounding quiz

Introduction Today and test communication a percent calculation method encountered a problem, I used a strong cast in the stored procedure (32.678 as DECIMAL (5,1)) I think the method will only hold a decimal number, and my response to the test is that I didn't use the rounding function and the data was not rounded, The test said that the data they had validated themselves was rounded. I thought about it. So I tried to test every point in the stored

Comparison of rounding functions for C + +Rounding a number that contains a decimal point is a common requirement. There are similar rounding functions in C + +. There are floor () and ceil () functions in the header file of C + +. There are also round () functions in the STL. These three functions function as follows: Function Name function

One: You can choose to retain the number of digits, the comments are explained very detailed,Two: All codeusingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Linq;usingSystem.Text;usingSystem.Windows.Forms;namespaceround{ Public Partial classFrm_main:form { PublicFrm_main () {InitializeComponent (); } Private voidBtn_get_click (Objectsender, EventArgs e) { DoubleP_dbl_d1, P_DBL_D2;//define two variables of type

If we use the "/" operator for division, we get a decimal value if we encounter a situation that cannot be done. What if I only want to get the integer part?1.round-rounding of floating-point numbersFloat round (float $val [, int $precision]) Returns the result of rounding Val based on the specified precision precision (number of digits after decimal point). Precision can also be negative or 0 (the default

There are a number of rounding functions in PHP, including round (), ceil (), floor (), and so on, with a reference to a friend in need. The code is as follows Copy Code $s = rand (100,200);$pi =pi ();$r =sqrt ($s/$pi);$QZ 1=round ($R); Rounding rounded rounding$QZ 2=ceil ($R); into a method to take the whole$QZ 3=floor ($R);

This article mainly introduces several methods for getting an integer in Python, including rounding down, rounding up, rounded up, and rounded up. The sample code is provided respectively. I believe that it has some reference value for your understanding and learning. if you need it, you can refer to it. Preface For every programmer, data processing is inevitable in the programming process. in many cases,

1. functionThe double value in the program is accurate to two digits after the decimal point. Can be rounded or truncated directly.For example: Enter 12345.6789, the output can be 12345.68 or it can be 12345.67. As to whether rounding is required, parameters can be used to determine (Roundingmode.up/roundingmode.down, etc.).2. Implementing the CodePackage Com.clzhang.sample;import Java.math.bigdecimal;import Java.math.roundingmode;import Java.text.de

The example in this article summarizes the way in which PHP achieves rounding. Share to everyone for your reference. The specific analysis is as follows: PHP three ways to achieve rounding, respectively, through the Number_format function, round function and sprintf formatted output method to achieve rounding 1.number_format method to achieve

Rounding is a problem that occurs frequently in software development. I have used this operation in more than one project. If you search for c # On the internet, there will be many results, however, most of the content is about Microsoft's Math. round () is inaccurate and belongs to "four homes, six homes, six homes, and five into two". Then many people write their own methods to implement this. Some of them are very simple, some are very complicated,

Here are a few ways to round decimal values to integers: Math.ceil (), Math.floor (), and Math.Round (). These three methods follow the following rounding rules, respectively:Math.ceil () performs an upward rounding, that is, it always rounds the value up to the nearest integer;Math.floor () Performs a downward rounding, that is, it always rounds the value down t

SQL Rounding Action April 02, 2009 Thursday 10:01 before the use of this method has been documented, but today's use of the time is still forgotten, in fact, usually used to take the whole operation there are several cases, a simple rounding, Regardless of what is behind the decimal point, such as 12.21 or 12.68 is 12, so the floor (12.21), the parameters can be an expression, can be a number, can be a vari

Matlab take the whole function1) fix (x): Truncate rounding.>> fix ([3.12-3.12])Ans =3-3(2) floor (x): The largest integer not exceeding x. (Gaussian rounding)>> floor ([3.12-3.12])Ans =3-4(3) Ceil (x): smallest integer greater than X>> ceil ([3.12-3.12])Ans =4-3(4) Rounding round and rounding>> Round (3.12-3.12)Ans =0

Matlab take the whole function1) fix (x): Truncate rounding.>> fix ([3.12-3.12])Ans =3-3(2) floor (x): The largest integer not exceeding x. (Gaussian rounding)>> floor ([3.12-3.12])Ans =3-4(3) Ceil (x): smallest integer greater than X>> ceil ([3.12-3.12])Ans =4-3(4) Rounding round and rounding>> Round (3.12-3.12)Ans =0

Summary:Use round SQL functions to round-up numeric data, as described belowLab environment: SQL Server 2008Transferred from: http://www.maomao365.com/?p=6454 Recently received the user needs, to the numerical data, no matter how much behind the data, the direct rounding operation, wrestling, finally found that the round function can satisfy this operation.--------------------------------------------------The Round Function

Tags: 3.4 Part log code negative strong return COM logsMySQL Rounding function round (x) The ROUND (x) function returns the integer closest to parameter x, rounding the X value. Instance: The operand is rounded using the round (x) function. The SQL statements are as follows: Mysql>select ROUND ( -2.34), ROUND ( -4.56), ROUND (2.34), ROUND (4.56); The execution results of the ROUND (x) function are as follow