$ZCSC (ObjectScript)
Returns the cosecant of the given argument.
Synopsis
$ZCSC(n)
Argument
| Argument | Description |
|---|---|
| n | An angle in radians. |
Description
$ZCSC returns the trigonometric cosecant of n. The result is a signed decimal number.
Argument
n
An angle in radians, specified as a nonzero number. It can be specified as a value, a variable, or an expression. Specifying 0 generates an <ILLEGAL VALUE> error; specifying $DOUBLE(0) generates a <DIVIDE> error.
A non-numeric string is evaluated as 0. For evaluation of mixed numeric strings and non-numeric strings, refer to Strings As Numbers.
Examples
The following example permits you to compute the cosecant of a number:
READ "Input a number: ",num
IF num=0 { WRITE !,"ILLEGAL VALUE: zero not permitted" }
ELSE {
WRITE !,"the cosecant is: ",$ZCSC(num)
}
QUITThe following example compares the results from InterSystems IRIS fractional numbers ($DECIMAL numbers) and $DOUBLE numbers. In both cases, the cosecant of pi/2 is exactly 1:
WRITE !,"the cosecant is: ",$ZCSC($ZPI)
WRITE !,"the cosecant is: ",$ZCSC($DOUBLE($ZPI))
WRITE !,"the cosecant is: ",$ZCSC($ZPI/2)
WRITE !,"the cosecant is: ",$ZCSC($DOUBLE($ZPI)/2)
WRITE !,"the cosecant is: ",$ZCSC($DOUBLE($ZPI/2))
