Apple II manual Arithmetic Functions Statement SYNTAX/FUNCTION ABS, Statement SYNTAX/FUNCTION ATN

307ARITHMETIC FUNCTIONS

STATEMENT SYNTAX/FUNCTION

ABS	ABS (expression)
	Gives the absolute value of the expression

X.ABS returns X if X>=0, -X otherwise.

STATEMENT SYNTAX/FUNCTION

ATN	ATN (expression)
	Gives the arcTangent of the expression X.
	The result is returned in radians and ranges
	from -PI/2 to PI/2 (PI/2=1.5708). If you
	want to use this function, you must provide
	the code in memory. See Appendix H for
	implementation details.
STATEMENT	SYNTAX/FUNCTION
COS	COS (expression)
	Gives the cosine of the expression X. X is
	interpreted as being in radians.
STATEMENT	SYNTAX/FUNCTION
EXP	EXP (expression)
	Gives the constant "E" (2.71828) raised so
	the power X (E^X). The maximum argu-
	ment that can be passed to EXP without
	overflow occurring is 88.0296.
STATEMENT	SYNTAX/FUNCTION
INT	INT (expression)
	Returns the largest integer less than or
	equal to its expression X. For example:
	INT(.23)=0, INT(7)=7, INT(-.1)=-1,
	INT(-2)=-2, INT(1.1)=1.
	The following would round X to 0 decimal
	places:
	INT(X*10^D+.5)/10^D
STATEMENT	SYNTAX/FUNCTION
LOG	LOG (expression)
	Gives the natural (Base E) logarithm of its
	expression X. To obtain the Base Y
	logarithm of X use the formula LOG(X)/
	LOG(Y). Example: The base 10 (com-
	mon) log of 7 = LOG(7)/LOG(10).
STATEMENT	SYNTAX/FUNCTION
RND	RND (parameter)
	Generates a random number between 0
	and 1. The parameter X controls the
	generation of random numbers as follows:
	X<0 starts a new sequence of random
	numbers using X. Calling RND with the
	same X starts the same random number
	sequence. X=0 gives the last random
	number generated. Repeated calls to
	RND(0) will always return the same
	random number. X>0 generates a new
	random number between 0 and 1.

EXAMPLE

120 PRINT ABS(X)

EXAMPLE

210 PRINT ATN(X)

EXAMPLE

200 PRINT COS(X)

EXAMPLE

150 PRINT EXP(X)

EXAMPLE

140 PRINT INT(X)

EXAMPLE

160 PRINT LOG(X)

EXAMPLE

170 PRINT RND(X)