Flexsim常用数学函数简介

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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.
, @, U  B  F. J, T( S, qdouble myval = ceil(-2.3); // Sets myval to -2.
2 y1 U* g& c0 f5 o, v/ }double myval = ceil(-3.8); // Sets myval to -3.
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floor
( ^0 y6 {7 P% D: R0 u) q(num num)

地板，向下取整。

Example

double myval = floor(2.3); // Sets myvalto 2.
$ i. U1 U1 M5 B1 T* \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
: w& k: @! {7 h# K9 b3 g(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);

! Z+ v) V- ]) @9 N% T# T. @1 gmynum1 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
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4 I& k$ Z" ]8 Y' l$ |; w; O7 }! N! Ftrunc(2.95), returns 2

frac
(num value)

取小数点之后的部分。

Example

frac(3.124) returns 0.124
3 f- n. Z5 U  |  c" M. }0 U; ^" ~frac(-16.12) returns -0.12
2 w* E  A; y; Q  L! g4 Ffrac(12) returns 0.0
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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
" _; g0 N/ Z) t8 u7 q(num value)

绝对值。

Example

if(fabs(x1 - x2) > 5)

factorial
(num value)

阶乘。

Example

factorial(5)
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This calculates the factorial of 5, which is 1*2*3*4*5 = 120
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fmod
4 K& E9 X: P6 c: Q(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)
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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.
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pow
2 B& H% [3 x6 J+ P(num num1, numnum2)

乘方。

Example

double myval = pow(2,3); Sets myval to 8.
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sqr
: h+ O% v. s# e(num value)

平方Square of value.

Example

sqr(2)

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sqrt
(num value)

平方根Square root of value

Example

sqrt(10) This expression will return 3.16

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比如，我们要计算托盘上有多少层货物。
3 z: U+ r. y/ k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。
) n( ?- x1 n! A% ?6 D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。

这个真的很有用~谢谢加老师、

Mark~谢谢加老师的分享

受教了