Vision VTB-101 Guia do Utilizador descarregar pdf (Página 37)

VTB USER GUIDE

8.8 ATAN2

It's similar to atan but it returns a value from -π and +π .

Hardware All

Syntax

Atan2 (y, x) as float

The arguments y and x are of type FLOAT.

Return Value

The return value coincides with the angle whose tangent is y / x.

Example

Used variables:

x float

y float

angle float

radians float

result float

PI float

PI= 3.141592

x=1.0

y=2.0

angle = 30

radians = angle * (PI/180)

result = Tan(radians) ' Calculate the tangent of 30 degree

radians = Atan(result) ' Calculate the Arctangent of the result

angle = radians * (180/PI)

radians = Atan2(y, x) ' Calculate the Atan2

angle = radians * (180/PI);

8.9 ABS

Return the absolute INTEGER value

Hardware All

Syntax

Abs (number) as long

The argument number can be a LONG value or any numeric expression.

Example

Used variables:

Num long

Num = -3250

Num = Abs(Num) ‘ return the value 3250

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Vision VTB-101 Guia do Utilizador Página 37