Radio Shack TRS-80 Model 3 - Page 227

APPENDIX
ArithmeticFunctions*
Section 2
Function Operation (unless noted otherwise, Examples
Page
-1.7E+38< =exp< = 1.7E+38)
ABS(exp) Returns absolute value.
ABS(L*.7)
711
ABS(SIN(X))
ATN(exp)
Returns arctangent in radians.
ATN(2.7)
711
ATN(A*3)
CDBL(exp) Returns double-precision representa-
CDBL(A)
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tionof expo
CDBL(A + 1/3#)
CINT(exp) Returns largest integernot greater CINT(A#+B) 7/2
than expo Limits:
- 32768< = exp< +32768.
COS(exp) Returns the cosine of exp; assumes COS(2*A)
7/2
exp is in radians.
COS(A/57.29578)
CSNG(exp) Returns single-precision representation, CSNG(A#)
7/2
with 5/4 rounding in least significant CSNG(.33*B#)
decimal when exp is double-precision.
EXP(exp) Returns the natural exponential, EXP(34.5)
7/3
eexp = EXP( exp ).
EXP(A*B*C - 1)
FIX(exp)
Returns the integerequivalent to
FIX(A-B)
7/3
truncatedexp (fractional part of exp
is choppedoff).
INT(exp)
Returns largest integernot greater INT(A+B*C)
7/3
thanexp.
LOG(exp)
Returns natural logarithm (base e) LOG(12.33)
7/3
of expo Limits: exp must be positive.
LOG(A
B+B)
RND(O) Returns a pseudo-random number
RND(O)
7/4
between O. 000001and 0.999999
inclusive.
RND(exp)
Returns a pseudo-random number
RND(40)
7/4
between 1and INT(exp) inclusive. RND(A+B)
Limits: 1< = exp<32768.
SGN(exp)
Returns - 1for negativeexp; afor SGN(A*B+3)
7/4
zero exp; + 1for positive expo
SGN(COS(X))
*exp is any numeric-valued expression or constant.
A/13