Campbell CR5000, Руководство оператора

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Section 8. Processing and Math Instructions
8-32
Tan Function Example
The example uses Tan to calculate the tangent of an angle from a Volt(1) input.
Dim Degrees, Pi, Radians, Ans 'Declare variables.
Pi = 4 * Atn(1) 'Calculate Pi.
Degrees = Volt(1) 'Get user input.
Radians = Degrees * (Pi / 180) 'Convert to radians.
Ans = Tan(Radians) ‘The Tangent of Degrees.
TANH (Source)
The TANH function returns the hyperbolic tangent of an expression or value.
Syntax
x = TANH (Source)
Remarks
The TANH function returns the hyperbolic tangent [ tanh(x) = sinh(x)/cosh(h) ]
for the value defined in Source.
TANH Function Example
The example uses TANH to calculate the hyperbolic tangent of a voltage input.
Public Volt1, Ans 'Declare variables.
VoltDiff(Volt1,1,mV5000,1,True,100,500,1,0)
'Returns voltage on Channel(1) to Volt(1)
Ans = TANH( Volt1 )
'The Hyperbolic Tangent of Volt1.
XOR
The XOR function is used to perform a logical exclusion on two expressions.
Syntax
result = expr1 XOR expr2
Remarks
If only one of the expressions evaluates True, result is True. If either
expression is a Null, result is also a Null. When neither expression is a Null,
result is determined according to the following table:
If expr1 is And expr2 is The result is
True True False
True False True
False True True
False False False