javascript round to 2 decimal

/*** Java two integers divide two decimal places and convert decimals to percentages* In Java, when two integers are divided, because the number after the decimal point is truncated, the result of the operation will be an integer, if you want to get the result of the operation as a floating point, you must convert both integers one or both to a floating point.For example:(float) A/b///convert one of the int

Hduoj mathematicsDecimal score 2 Time Limit: 1000/1000 MS (Java/others) memory limit: 32768/32768 K (Java/Others) Total submission (s): 3040 accepted submission (s): 1239 Problem description Ray listened to the teacher in the mathematics class and said that any decimal number can be expressed as a score. He started to convert it and soon completed, but he thought of another problem, how can we convert a rep

When you preserve decimal type data by System.Data.Entity.DbContext, only the decimal place 2 bits is reserved by default. To solve this problem, you can add the appropriate code in the Onmodelcreating event, and refer to the following code for the shop. The longitude is set to 20 bits of decimal place:public class use

Reprint:http://blog.csdn.net/wj_j2ee/article/details/8560132Java retains two-bit decimal questions:Way One:RoundedDouble F = 111231.5585;BigDecimal B = new BigDecimal (f);Double f1 = B.setscale (2, bigdecimal.round_half_up). Doublevalue ();Keep two decimal places---------------------------------------------------------------Way two:Java.text.DecimalFormat DF =new

We can see that many people want to retain the decimal point after the number, but most of them write a function to intercept the number, and consider rounding it down. It is quite complicated to write it. In fact, the javascript Number object has a method to retain decimal places: toFixed, which is the Number after rounding. I was worried that IE6 did not suppor

See a lot of people have this reserved number of decimal point after the demand, but most of them write a function to intercept, but also consider rounding up what, it is quite complicated to write. In fact, the number object of JavaScript has a method of preserving decimals after the decimal point: toFixed, which is rounded. I was afraid IE6 not support this m

See a lot of people have this reserved number of decimal point after the demand, but most of them write a function to intercept, but also consider rounding up what, it is quite complicated to write. In fact, the number object of JavaScript has a method of preserving decimals after the decimal point: toFixed, which is rounded.I was afraid IE6 not support this met

Last year, a colleague asked me how to convert decimals into integers (minus decimal places) in JavaScript, when I answered parseint directly. In fact, there was no other way to think about the problem. But recently, while looking at someone else's it code, I found him writing code like this.var random = (Math.random () * 2) | 0; Get random 0 or 1we all know that

Tags: indicates SQL conversion round oat decimal different need problemProblem:The float Momey type in the database will be accurate to many decimal places. But sometimes we don't need to be that precise, for example, to only be accurate to two significant digits.Solve:1. Use the Round () function, such as the Round (@num, 2) parameter

1. Only require the retention of n bits not four 5 into float f = 0.55555f;int i = (int) (f * 100);f = (float) (i*1.0)/100;2. Keep n bits, rounded. Decimal d= Decimal. Round (decimal. Parse ("0.55555"), 2);3. Keep n-bit rounding Math.Round (0.55555,2)4, keep n bits rounded double dbdata = 0.55555; String str1 = Dbdata.

1. Only ask to keep n bit not four 5 infloat F = 0.55555f;int i = (int) (f * 100);f = (float) (i*1.0)/100;2. Keep n bits, rounded.Decimal d= Decimal. Round (decimal. Parse ("0.55555"), 2);3. Keep n-bit roundingMath.Round (0.55555,2)4, keep n-bit roundedDouble dbdata = 0.55555;String str1 = Dbdata. ToString ("F2");//fn reserved n bits, rounded5. Keep n-bit roundin

D. Maximum Value time limit per test 1 second memory limit/test 256 megabytes input standard input output standard out Put You are given a sequence a consisting of n integers. Find the maximum possible value of (integer remainder Ai divided by AJ), where 1≤i, J≤n and Ai≥aj. Input The contains integer n-the length of the sequence (1≤n≤2 105). The second line contains n space-separated integers ai (1≤ai≤106). Output Print the answer to the problem. Samp

1, Math.Round (0.333333, 2); According to rounding international standards 2, double dbdata = 0.335333;String str1 = String.Format ("{0:f}", dbdata); Default to two-bit retention 3, float i = 0.333333;int j = (int) (i * 100);i = j/100; 4, Decimal. Round (decimal. Parse ("0.3333333"),

Question link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1717 Decimal score 2 Time Limit: 1000/1000 MS (Java/others) memory limit: 32768/32768 K (Java/Others)Total submission (s): 2921 accepted submission (s): 1187 Problem descriptionray was told by the teacher in the mathematics class that any decimal number can be expressed as a score. He started to conv

Javascript controls how to enter only numbers and decimal places in the text box This article describes how to enter only numbers and decimal places in the javascript control text box. The example shows how to use a regular expression in javascript to restrict numbers and

JS in the tofixed (n) method to round the number to the number of the specified number of decimal digits, Note: This method can only be used for data type numbers, including Float,int. For example:123.12345.toFixed (2); "123.12" divide the data by using a single statement like this:. Replace (/\d{1,3} (? = (\d{3}) + (\.\d*)? $)/g, ' $, '). Note: thereplace () method can only work on string types , and our t

Record 1. Keep Decimal Two-bit decimal, Java method, using NumberFormat to achieve, rounding results Double Sourceprice = 4940.20;//Sourceprice = 1514940.20 double reductionprice = 0.1; Double price = Sourceprice-reductionprice; NumberFormat NF = numberformat.getnumberinstance (); Notice here nf.setmaximumfractiondigits (