Flexsim常用数学函数简介

zorsite · 发表于 2017-5-31 02:14:42

本帖最后由 zorsite 于 2017-5-31 03:15 编辑

ceil
(num num)

天花板，向上取整。

Example

double myval =ceil(2.3); // Sets myval to 3.
double myval = ceil(3.8); // Sets myval to 4.
double myval = ceil(-2.3); // Sets myval to -2.
double myval = ceil(-3.8); // Sets myval to -3.

floor
(num num)

地板，向下取整。

Example

double myval = floor(2.3); // Sets myvalto 2.
double myval = floor(3.8); // Sets myval to 3.
double myval = floor(-2.3); // Sets myval to -3.
double myval = floor(-3.8); // Sets myval to -4.

round
(num value[, num precision])

根据指定的小数位数进行四舍五入。

Example

int mynum1 = round(3.6269);
int mynum2 = round(3.6269,2);

mynum1 will be 4, and mynum2 will be 3.63.

trunc
(num value)

去除小数部分取整。Truncation

Example

trunc(2.478), returns 2

trunc(2.95), returns 2

frac
(num value)

取小数点之后的部分。

Example

frac(3.124) returns 0.124
frac(-16.12) returns -0.12
frac(12) returns 0.0

sign
(num value)

决断正负零，正数返回1，负数返回-1，0返回0。

Example

sign(-1)

fabs
(num value)

绝对值。

Example

if(fabs(x1 - x2) > 5)

factorial
(num value)

阶乘。

Example

factorial(5)

This calculates the factorial of 5, which is 1*2*3*4*5 = 120

fmod
(num value1, numvalue2)

取余。

Description

Remainder of value1/value2. fmod returnsthe floating-point remainder of value1 / value2. If the value of b is 0.0, fmodreturns a quiet NaN.
This command is great for getting a repeating set ofnumbers because no matter what value1 is, so long as value2 is unchanged, fmodwill return a set of numbers that keeps repeating itself.

Example

fmod(10,3) This returns the remainder of 10/3, which is 1.0

if(fmod(current.stats.output,10) == 0)

If this condition was in the OnExit of an object in the model, it would be truewith every 10th flowitem that exits, starting with the 10th flowitem.

pow
(num num1, numnum2)

乘方。

Example

double myval = pow(2,3); Sets myval to 8.

sqr
(num value)

平方Square of value.

Example

sqr(2)

sqrt
(num value)

平方根Square root of value

Example

sqrt(10) This expression will return 3.16

比如，我们要计算托盘上有多少层货物。
默认情况下，pallet上面每层可以放置4个box。也就是说，1,2,3,4个box都算1层，5,6,7,8个box都算是2层。
此时可以用ceil函数向上取整，ceil(content(pallet)/4)即可得到正确的层数。

我很强壮 · 发表于 2017-6-1 08:41:09

这个真的很有用~谢谢加老师、

lulu-luka · 发表于 2017-6-2 12:01:02

Mark~谢谢加老师的分享

壮志凌云1988 · 发表于 2018-1-23 20:11:07

受教了

Flexsim常用数学函数简介

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