PHP takes integer functions commonly used four methods, the following collection of four functions, often used to take the whole function, a small sum today! Actually very simple, is just a few functions ~ ~ mainly:Ceil, Floor,round,intvalPHP Four
The content of this section:
PHP, JS small number Rounding Method
The first part:
1, discard the fractional part, and keep the whole number of parts
Copy Code code example:
Php:intval (7/2) js:parseint (7/2)
2, rounding up, with decimals on the
Round () Rounding out the js Banker algorithm, round banker
First, let's guess the result returned by round (0.825, 2,
First, SQL server Returns 0.83
The returned result of js is 0.83. The code is as follows:
Var B = 0.825; alert (Math. round (B * 1
Recently was depressed by the round function in R, some say that the rules of the round function are so defined:
Refer to Cos Moderator Xiaonan: This rule has a vulgar called "four homes six into five together", also called "Banker rounding", the
As for antipattern, you may know that its only function is to avoid reverse pattern during actual development. The main introduction in Baidu encyclopedia is as follows:
Recognized anti-pattern in software development
Anti-pattern in project
Contents [Hide] 1 the Problem 2 Primer on Financial Issues 3 introducing BigDecimal 4 rounding and Scalin 5 immutability and Arithm Etic 6 Comparison 7 "to" Round:thoughts on Precision 8 Appendix 8.1 API Reference 8.2 ofbiz Framework 8.3 Minilang
Original link http://blog.csdn.net/oscar999/article/details/16839417Preface Trunc is a shorthand for truncate. The Chinese translation is "truncate" or "truncated". On the surface, it should be a string or a number to intercept. There are actually
Https://www.cnblogs.com/herbert/p/3402245.htmlBasisThe floating-point number is represented by the machine's double-precision (a-bit) of the floating-point number. provides approximately 17 bits of precision and ranges from 308 to 308 of the
BasisThe floating-point number is represented by the machine's double-precision (a-bit) of the floating-point number. provides approximately 17 bits of precision and ranges from 308 to 308 of the exponent. Same as the double type in the C language.
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