數學運算函數 [Math & Trig]
double MathAbs( double value)
返回數字的絕對值
:: 輸入參數
value - 要處理的數字
示例:
double dx=-3.141593, dy;
// calc MathAbs
dy=MathAbs(dx);
Print("The absolute value of ",dx," is ",dy);
// Output: The absolute value of -3.141593 is 3.141593
double MathArccos( double x)
計算反餘弦值
:: 輸入參數
value - 要處理的數字，範圍-1到1
示例:
double x=0.32696, y;
y=asin(x);
Print("Arcsine of ",x," = ",y);
y=acos(x);
Print("Arccosine of ",x," = ",y);
//Output: Arcsine of 0.326960=0.333085
//Output: Arccosine of 0.326960=1.237711
double MathArcsin( double x)
計算反正弦值
:: 輸入參數
x - 要處理的值
示例:
double x=0.32696, y;
y=MathArcsin(x);
Print("Arcsine of ",x," = ",y);
y=acos(x);
Print("Arccosine of ",x," = ",y);
//Output: Arcsine of 0.326960=0.333085
//Output: Arccosine of 0.326960=1.237711
double MathArctan( double x)
計算反正切值
:: 輸入參數
x - 要處理的值
示例:
double x=-862.42, y;
y=MathArctan(x);
Print("Arctangent of ",x," is ",y);
//Output: Arctangent of -862.42 is -1.5696
double MathCeil( double x)
返回向前進位後的值
:: 輸入參數
x - 要處理的值
示例:
double y;
y=MathCeil(2.8);
Print("The ceil of 2.8 is ",y);
y=MathCeil(-2.8);
Print("The ceil of -2.8 is ",y);
/*Output:
The ceil of 2.8 is 3
The ceil of -2.8 is -2*/
double MathCos( double value)
計算餘弦值
:: 輸入參數
value - 要處理的值
示例:
double pi=3.1415926535;
double x, y;
x=pi/2;
y=MathSin(x);
Print("MathSin(",x,") = ",y);
y=MathCos(x);
Print("MathCos(",x,") = ",y);
//Output: MathSin(1.5708)=1
// MathCos(1.5708)=0
double MathExp( double d)
Returns value the number e raised to the power d. On overflow, the function returns INF (infinite) and on underflow, MathExp returns 0.
:: 輸入參數
d - A number specifying a power.
示例:
double x=2.302585093,y;
y=MathExp(x);
Print("MathExp(",x,") = ",y);
//Output: MathExp(2.3026)=10
double MathFloor( double x)
返回向後進位後的值
:: 輸入參數
x - 要處理的值
示例:
double y;
y=MathFloor(2.8);
Print("The floor of 2.8 is ",y);
y=MathFloor(-2.8);
Print("The floor of -2.8 is ",y);
/*Output:
The floor of 2.8 is 2
The floor of -2.8 is -3*/
double MathLog( double x)
計算對數
:: 輸入參數
x - 要處理的值
示例:
double x=9000.0,y;
y=MathLog(x);
Print("MathLog(",x,") = ", y);
//Output: MathLog(9000)=9.10498
double MathMax( double value1, double value2)
計算兩個值中的最大值
:: 輸入參數
value1 - 第一個值
value2 - 第二個值
示例:
double result=MathMax(1.08,Bid);
double MathMin( double value1, double value2)
計算兩個值中的最小值
:: 輸入參數
value1 - 第一個值
value2 - 第二個值
示例:
double result=MathMin(1.08,Ask);
double MathMod( double value, double value2)
計算兩個值相除的餘數
:: 輸入參數
value - 被除數
value2 - 除數
示例:
double x=-10.0,y=3.0,z;
z=MathMod(x,y);
Print("The remainder of ",x," / ",y," is ",z);
//Output: The remainder of -10 / 3 is -1
double MathPow( double base, double exponent)
計算指數
:: 輸入參數
base - 基數
exponent - 指數
示例:
double x=2.0,y=3.0,z;
z=MathPow(x,y);
Printf(x," to the power of ",y," is ", z);
//Output: 2 to the power of 3 is 8
int MathRand( )
取隨機數
示例:
MathSrand(LocalTime());
// Display 10 numbers.
for(int i=0;i<10;i++ )
Print("random value ", MathRand());
double MathRound( double value)
取四捨五入的值
:: 輸入參數
value - 要處理的值
示例:
double y=MathRound(2.8);
Print("The round of 2.8 is ",y);
y=MathRound(2.4);
Print("The round of -2.4 is ",y);
//Output: The round of 2.8 is 3
// The round of -2.4 is -2
double MathSin( double value)
計算正弦數
:: 輸入參數
value - 要處理的值
示例:
double pi=3.1415926535;
double x, y;
x=pi/2;
y=MathSin(x);
Print("MathSin(",x,") = ",y);
y=MathCos(x);
Print("MathCos(",x,") = ",y);
//Output: MathSin(1.5708)=1
// MathCos(1.5708)=0
double MathSqrt( double x)
計算平方根
:: 輸入參數
x - 要處理的值
示例:
double question=45.35, answer;
answer=MathSqrt(question);
if(question<0)
Print("Error: MathSqrt returns ",answer," answer");
else
Print("The square root of ",question," is ", answer);
//Output: The square root of 45.35 is 6.73
void MathSrand( int seed)
通過Seed產生隨機數
:: 輸入參數
seed - 隨機數的種子
示例:
MathSrand(LocalTime());
// Display 10 numbers.
for(int i=0;i<10;i++ )
Print("random value ", MathRand());
double MathTan( double x)
計算正切值
:: 輸入參數
x - 要計算的角度
示例:
double pi=3.1415926535;
double x,y;
x=MathTan(pi/4);
Print("MathTan(",pi/4," = ",x);
//Output: MathTan(0.7856)=1
感謝您的閱讀！
微博：
閱讀更多 大侃金融 的文章
