Campbell Scientific CR3000 Micrologger - Manual (Page 498)

Appendix A. CRBasic Programming Instructions
498
EQV
Performs a logical equivalence on two expressions.
Syntax
result = expr1 EQV expr2
NOT
Performs a logical negation on an expression.
Syntax
result = NOT expression
OR
Performs a logical disjunction on two expressions.
Syntax
result = expr1 OR expr2
XOR
Performs a logical exclusion on two expressions.
Syntax
result = expr1 XOR expr2
IIF
Evaluates a variable or expression and returns one of two results based on the
outcome of that evaluation.
Syntax
Result = IIF (Expression, TrueValue, FalseValue)
IMP
Performs a logical implication on two expressions.
Syntax
result = expression1 IMP expression2
A.6.6 Trigonometric Functions
A.6.6.1 Derived Functions
Table Derived Trigonometric Functions
(p. 498)
is a list of trigonometric functions
that can be derived from functions intrinsic to CRBasic.
Table 121. Derived Trigonometric Functions
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))