how to round to 1 decimal place

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

Adjust the decimal format, such as retaining the last two digits of the decimal point, the following articles collect some good implementation methods and share some of them. During the development process, we often encounter the need to adjust the

Round See Returns the number rounded up by the specified number. Syntax Round(Number,Num_digits)   Number. The number of digits specified by num_digits. Description If num_digits is greater than 0, it is rounded to

Example of PHP rounding, rounding, and using the round function. Example of using the PHP rounding, rounding, and round functions, and rounding the round decimal places: PHP keeps two decimal places and rounds them to copy the code as follows: $ n0.1

0 reply content: this problem cannot be solved because of the binary floating point number. Let's first look at a phenomenon that has nothing to do with round: >>> Def show (x ):... "print a number, 20-bit precision """... print ('{:. 20f }'.

Reply content:Because binary floating-point numbers do not solve this problem. First look at a phenomenon that is unrelated to round: >>> def Show(x):... "" prints a number, 20-bit precision "" "... Print(' {:. 20f} '.format(x))...>>> Show(

PHP rounding, rounding, round function Use example, rounding round 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

In the development process, you often encounter formatting to adjust decimals, such as two digits after the decimal point, and so on. Methods are also quite common, as is the memo below. The first, using Math.Round var original=28.453 1)//round

The integer function is often used. let's make a summary today! Actually, it's quite simple, just a few functions ~~ Major methods: ceil, floor, round, intval integer methods such as rounding, rounding, and ignoring decimals There are four common

TRUNCATE (x, y)TRUNCATE (x, y) returns the value of x reserved to the Y-bit after the decimal point (the biggest difference from round is that it is not rounded), see the following example:mysql>SELECT TRUNCATE(7.536432,2);+--------------------------