rounding quiz

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Javascript rounding method summary, javascript rounding

Javascript rounding method summary, javascript rounding The rounding function toFixed (n) in native javascript, where n is the number of decimal places to be retained. (0 Copy codeThe Code is as follows:Var num = 1.0999;Console. log (num. toFixed (20 )); Http://jsfiddle.net/14x0vhu6/ The output value is not the expected 1.0999, but 1.09990000000000009983. Yo

PHP to take the whole, rounded rounding, up rounding, down to the whole, decimal intercept ____php

php to take the integer function commonly used in four ways: 1. Direct rounding, discard decimals, keep integers: intval ();2. Rounded rounding: round ();3. Take the whole up, there are decimals plus 1:ceil ();4. Take the whole down: floor (). One, intval-to the variable to the integer formIntval is automatically converted to 0 if it is a character type. Intval (3.14159); 3 intval (3.64159); 3 intval (

PHP rounding to exact decimal places and rounding _ PHP Tutorial

PHP rounded to exact decimal places and rounded up. In php, functions such as sprintf, ceil, floor, and round are used to perform rounding. let's take a look at the specific instance. In this article, we will use php to perform four functions in php to take decimal places: sprintf, ceil, floor, round, and so on. let's take a look at the specific example. This article will use php to round the number and retain N decimal places, and use php to round th

PHP floating point calculation comparison and rounding inaccurate solution, rounding inaccurate _php tutorial

PHP floating point calculation comparison and rounding inaccurate solution, rounding inaccurate PHP interesting phenomenon, it should be a lot of programming languages will have this phenomenon. This is because the computer itself on the problem of floating point recognition ..... [PHP]View Plaincopy $f = 0.58; Var_dump (intval ($f * 100 *100)); //Result 5799 Var_dump (float) ($f * 100 *100))

56.js Math Rounding, rounding, etc.

Math.Abs ()//math.abs (x) x any value returns absolute valuesMath.ceil ()//math.ceil (x) rounded up, roundedMath.Cos ()//cosineMath.floor ()//math.floor (x) rounding downMath.max ()//Math.max (... arg) 0 or more parameters return the largest oneMath.min ()//Math.min (... arg) 0 or more parameters return the smaller oneMath.pow ()//math.pow (2,3) 2 of three-time squareMath.random ()//returns a random number between 0.0-1.0Math.sqrt ()//math.sqrt (x) x>

PHP rounding to exact decimal places and rounding

In php, functions such as sprintf, ceil, floor, and round are used to perform rounding. Let's take a look at the specific instance. This article will use php to round the number and retain N decimal places, and use php to round the number. (1) php keeps three decimal places and rounding them The Code is as follows: Copy code $ Num = 0.0215489;Echo sprintf ("%. 3f", $ num); // 0.022

PHP rounding, rounding, round functions using example _php instances

Decimal Example: PHP reserved two decimal places and rounded Copy the Code code as follows:$n = 0.1265489;Echo sprintf ("%.2f", $n); 0.13 As you can see, we used the sprintf function to format the $n%.2f is the target format, where 2 means that two-bit f means float (floating-point) 3rd is a decimal 6 is roundedLet's look at an example. Copy the Code code as follows:$n =0.1265489Echo substr (sprintf ("%.3", $n), 0,-1);//0.12 The code outputs a reserved 2 for decimals without

mysql-up, down, rounding-rounding function

Mysql> Select Ceil (2.44), round (2.44), floor (2.44);+------------+-------------+-------------+| Ceil (2.44) | Round (2.44) | Floor (2.44) |+------------+-------------+-------------+| 3 | 2 | 2 |+------------+-------------+-------------+1 row in Set (0.00 sec)Mysql> Select Ceil (2.55), round (2.55), floor (2.55);+------------+-------------+-------------+| Ceil (2.55) | Round (2.55) | Floor (2.55) |+------------+-------------+-------------+| 3 | 3 | 2 |+------------+-------------+-------------+1

The rounding of double and double in Java is a downward rounding __java

Package valuetest; public class Double2int { /** * @param args * /public static void main (string[] args) { double D = 5.5; int i = (int) d; System.out.println (i); D = 5.9; i = (int) d; System.out.println (i); D = 5.2; i = (int) d; System.out.println (i); Replace with uppercase double double d1 = new double (5.5); int i1 = D1.intvalue (); Sy

Upper rounding and rounding down methods in C # and Oracle

1. In C #:--math.ceiling (double), which returns the largest integer greater than or equal to the specified double-precision floating-point number (also known as the take-up of the day plate value);eg: Math. Ceiling (1.01) = 2; Math. Ceiling (1.37) = 2;--math.floor (double), which returns the largest integer less than or equal to the specified double-precision floating-point number (also known as the fetch floor value);eg: Math. Floor (1.99) = 1; Math. Floor (1.87) = 1;In 2.Oracle:Take the i

PHP Rounding Accurate decimal place and rounding _php tutorial

PHP to take the decimal place function has sprintf,ceil,floor,round and so on functions to achieve rounding, let's look at the specific example. This article will use PHP to round up numbers to preserve n decimal places, and a small summary of how numbers are rounded using PHP. (1) PHP reserved Three decimal places and rounded The code is as follows Copy Code $num = 0.0215489;Echo sprintf ("%.3f", $num); 0.022 (2)

PHP retains two decimal places and rounding and not rounding

Php keeps two decimal places and rounding themCopy codeThe Code is as follows:$ Num = 123213.666666;Echo sprintf ("%. 2f", $ num ); Php keeps two decimal places and does not roundCopy codeThe Code is as follows:$ Num = 123213.666666;Echo sprintf ("%. 2f", substr (sprintf ("%. 3f", $ num), 0,-2 )); Php returns an integerCopy codeThe Code is as follows:Echo ceil (4.3); // 5Echo ceil (9.999); // 10 Php rounding

Rounding in Java--several types of rounding

Mode one: BigDecimal way Double F = 3.1315; BigDecimal B = new BigDecimal (new Double (f). toString); Double f1 = B.setscale (3, bigdecimal.round_half_up). Doublevalue (); Note: There must be no direct use of the new BigDecimal (double) construction method. Instead of using the new BigDecimal (1.1315). ToString (), there will be an exact problem Mode two: DecimalFormat way DecimalFormat By default Roundingmode.half_even this type, and the result after format is a string DecimalFormat df = ne

PHP _ retain two decimal places and rounding _ Keep two decimal places and not rounding

PHP keeps two decimal places and rounds the PHP code $ Num = 123213.666666; Echo sprintf ("%. 2f", $ num ); $ Num= 123213.666666; echo sprintf ("%. 2f", $ num ); PHP keeps two decimal places and does not round the PHP code $ Num = 123213.666666; Echo sprintf ("%. 2f", substr (sprintf ("%. 3f", $ num), 0,-2 )); $ Num = 123213.666666; echo sprintf ("%. 2f", substr (sprintf ("%. 3f", $ num), 0,-2 )); PHP returns the entire PHP code. Echo Ceil (4.3); // 5 Echo Ceil (9.999); // 10 Echo Ce

WPS Table Rounding Method How to cancel the WPS table cancellation rounding Method

The WPS table has a function is that we enter some numbers in the table will find that if a decimal point will automatically kill the decimal, then how do we cancel this function? Let's take a look at the WPS table to cancel the rounding method, I hope the example can help you. The setting is very simple as long as we make a setting in the cell format. 1, we open to deal with the WPS table, and then we select the cell face click on the pop-up menu c

PHP Rounding Accurate decimal places and rounding

This article will use PHP to round up the numbers to keep n decimal digits, as well as using PHP for the number of rounding method to do a small sum. (1) PHP retains three decimal places and rounded The code is as follows Copy Code $num = 0.0215489;Echo sprintf ("%.3f", $num); 0.022 (2) PHP keep three decimal digits not rounded The code is as follows Copy Code $num = 0.0215489;Echo

Java rounding and Java round methods

1 Importjava.math.BigDecimal;2 Importjava.text.DecimalFormat;3 4 public classtestgetint{5 public Static voidmain (string[] Args) {6 Doublei=2, j=2.1, k=2.5, m=2.9; 7System.out.println ("rounding off decimal rounding: math.floor (2) =" + (int) Math.floor (i)); 8System.out.println ("rounding off decimal rounding: ma

Olympic gold Big quiz, win college good Gift

650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M00/85/DE/wKioL1etMTKR6J7EAAJ3F9APqj8826.jpg "title=" 710-420.jpg "alt=" Wkiol1etmtkr6j7eaaj3f9apqj8826.jpg "/>The four-year-old Olympic Games are Rio in full swing, and Chinese Olympic athletes are vying for the highest glory of the Olympic Games. In this 8 months of national Carnival , in addition to the Chinese Olympic athletes refueling, applause, of course, there is a passionate prize quiz! P

Python practice exercise: Generate random quiz paper files

TopicIf you are a geography teacher with 35 students in your class, you want to take a quiz in the capitals of the U.S. state. Unfortunately, there are a few bad guys in the class, and you can't be sure that students won't cheat. You want to randomly adjust the order of the questions so that each paper is unique, which makes it impossible for anyone to copy the answer from someone else. Of course, it's time-consuming and boring to do it by hand. Fortu

Java Basics Quiz

-memory stack, heap, method area.Usually we define a variable of a basic data type, a reference to a data, and a function call that is called by the field to save the stack space inside the JVM. Objects created through the new keyword and the constructor are heap spaces, which are part of the method area.10.math.round (11.5) is how much, math.round (-11.5) is how muchThe first result is 12, and the second result is-11. Because the rounding mechanism i

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