Campbell CR800 Specifikace stáhnout pdf (Strana 239)

Section 8. Processing and Math Instructions

XOR Operator Example

The example sets the variable Msg based on the value of variables A, B, and C,

assuming that no variable is a Null. If A = 10, B = 8, and C = 11, the left

expression is True and the right expression is False. Because only one

comparison expression is True, the XOR expression evaluates True.

Dim A, B, C 'Declare variables.

A = 10: B = 8: C = 11 'Assign values.

If A > B XOR B > C Then 'Evaluate expressions.

Msg = True

Else

Msg = False.

End If

Derived Math Functions

The following is a list of nonintrinsic mathematical functions that can be

derived from the intrinsic math functions provided with CRBasic:

Function CRBasic equivalent

Secant Sec = 1 / Cos(X)

Cosecant Cosec = 1 / Sin(X)

Cotangent Cotan = 1 / Tan(X)

Inverse Secant Arcsec = Atn(X / Sqr(X * X - 1)) + Sgn(Sgn(X) -1) *

1.5708

Inverse Cosecant Arccosec = Atn(X/Sqr(X * X - 1)) + (Sgn(X) - 1) * 1.5708

Inverse Cotangent Arccotan = Atn(X) + 1.5708

Hyperbolic Secant HSec = 2 / (Exp(X) + Exp(-X))

Hyperbolic Cosecant HCosec = 2 / (Exp(X) - Exp(-X))

Hyperbolic Cotangent HCotan = (Exp(X) + Exp(-X)) / (Exp(X) - Exp(-X))

Inverse Hyperbolic Sine HArcsin = Log(X + Sqr(X * X + 1))

Inverse Hyperbolic Cosine HArccos = Log(X + Sqr(X * X - 1))

Inverse Hyperbolic Tangent HArctan = Log((1 + X) / (1 - X)) / 2

Inverse Hyperbolic Secant HArcsec = Log((Sqr(-X * X + 1) + 1) / X)

Inverse Hyperbolic Cosecant HArccosec = Log((Sgn(X) * Sqr(X * X + 1) +1) / X)

Inverse Hyperbolic Cotangent HArccotan = Log((X + 1) / (X - 1)) / 2

Logarithm LogN = Log(X) / Log(N)

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Campbell CR800 Specifikace Strana 239