Sharp MZ-800 - Page 52

LOG(X) — Common logarithm
Returns the common logarithm of X (logioX), where X must be greater than 0,
Example: A=LOG(X)
LN(X) — Natural logarithm
Returns the natural logarithm of X (logeX), where X must be greater than 0.
Example: A =LN(X)
PAI(X) — Circular constant
Returns the value which is X times pi.
(PAI(1) = 4 =3.1415927)
Example: A=PAI(X) or A=47*X
RAD(X) — Radian
Converts the numeric value X from degrees into a value in radians.
Example: A= RAD(X)
(2) Character functions
A character function processes character strings. The MZ-800 BASIC supports the following charac-
ter functions. In the examples below, character variable A$ contains the character string ““ABCDEFG”’.
LEFTS(x$,n)
x$: character string
n: numeric value (from 0 to 255)
Returns a string consisting of the left n characters of string XS.
Example: B$ = LEFT$(A$,2) produces string ‘‘AB’”
MIDS$(x$,m,n)
x$: character string
m: numeric value from 1 to 255
n: numeric value from 0 to 255
Returns a string consisting of n characters following the mth character from the beginning of string xS.
Example: B$ = MIDS$(A$,3,3) produces string ‘“CDE”’.
RIGHTS(x$,n)
x$: character string
n: numeric value (from 0 to 255)
Returns a string consisting of the right n characters of string x$.
Example: B$ = RIGHT$(AS,2) returns a string consisting of the right 2 characters of string A$. There-
fore, variable B$ is returned as the string ‘‘FG’’,
Functions used with the PRINT statement
TAB(n)
n: numeric value
Moves the cursor to the (n+ 1)th character position from the left end of the current line.
This function is ignored when n is less than the current cursor location.
Example: PRINT ‘‘A’’;TAB(3);“*ABC”
A ABC
012345 + column positions which are not displayed.
t String ‘ABC’ is displayed from column 3.
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