READ "Input a number: ",num
IF num>1 { WRITE !,"ILLEGAL VALUE: number too big" }
ELSEIF num<-1 { WRITE !,"ILLEGAL VALUE: number too small" }
ELSE {
WRITE !,"the arc sine is: ",$ZARCSIN(num)
WRITE !,"the arc cosine is: ",$ZARCCOS(num)
}
QUIT
WRITE !,"the arc sine is: ",$ZARCSIN(0.0)
WRITE !,"the arc sine is: ",$ZARCSIN($DOUBLE(0.0))
WRITE !,"the arc sine is: ",$ZARCSIN(1.0)
WRITE !,"the arc sine is: ",$ZARCSIN($DOUBLE(1.0))
WRITE !,"the arc sine is: ",$ZARCSIN(-1.0)
WRITE !,"the arc sine is: ",$ZARCSIN($DOUBLE(-1.0))
