Caché ObjectScript Reference - InterSystems Documentation

Math and Time Functions• If num is negative, exponent must be an integer.See Also• $ZSQR function• $ZEXP function• $ZLN function• $ZLOG function• Operators in Using Caché ObjectScript$ZSECReturns the trigonometric secant of the specified angle value.$ZSEC(n)ParametersnAngle in radians ranging from 0 to 2 Pi. It can be specified as a value, a variable,or an expression.Description$ZSEC returns the trigonometric secant of n. The result is a signed decimal number.Note:$ZSEC (like all trigonometric functions) calculates its values based on pi roundedto the number of available decimal digits. Therefore, the value returned by$ZSEC($ZPI) is –.999999999999999999 and $ZSEC(0) is .999999999999999999.For this reason you should not perform limit tests comparing these returned valuesto 1 or –1.ParametersnAn angle in radians ranging from Pi to 2 Pi (inclusive). It can be specified as a value, a variable,or an expression. You can specify the value Pi by using the $ZPI special variable. You canspecify positive or negative values smaller than Pi or larger than 2 Pi; Caché resolve these372 Caché ObjectScript Reference