Sharp MZ-800 - Page 186

String control functions
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LEFTS$ 10 A$=LEFT$ Substitutes string variable X$ (from beginning to Nth character) for
(X$,N) string variable A$. It doesn’t matter whether N is a constant, variable
or numerical formula,
MIDS 20 B$=MID$(X$, Substitutes string variable X$ (from Mth character to N charater) for
M, N) string variable BS.
RIGHTS 30 C$=RIGHT$ Substitutes string variable X$ (from end to N character) for string
(X$, N) variable C$.
SPC 40 D$=SPC (N) Substitutes N number of spaces for string variable D$.
CHRS 60 F$=CHRS(A) Converse to the ASC function, substitutes ASCII code characters
which are equivalent to the value of real number A for string variable
F$. It doesn’t matter whether A is a constant, variable or numerical
formula.
ASC 70 A=ASC (X$) Substitutes the value of the ASCII code of the first character of
string variable X$ for variable A.
STRS 80 N$=STR$ (1) Converts to the VAL variable, substitutes the numerical variable I as
if it were a string for string variable N$.
VAL 90 1=VAL (N$) — Substitutes the numerical string of string variable NS as if it were a
number for variable I.
LEN 100 LX =LEN Substitutes the character length (character number) of string variable
(X$) X$ for variable LX.
110 LS=LEN Substitutes the sum of the character length of string variables X$ and
(X$+Y¥$) YS for variable LS.
Tab function
TAB 10 PRINT TAB Displays the value of variable A at the X + 1 character position
(X);A counting from the left edge of the screen.
Arithmetic operations
The calculation priority is of white figures on dark background at left side, but the calculation of figures in
parentheses ( ) has even higher priority.
f 10 A=X1TY Substitutes the XTY calculation result for variable A. (Note, however,
(power) that an error occurs if Y is not an integral number when X is a nega-
tive number at XTY.)
- 10A=-B 0—B is a subtraction; note that the “‘—"’ of —B is a minus sign.
{minus sign)
* 10 A=X*Y Substitutes the multiplication result of X and Y for variable A.
(multiplication)
4 10 A=X/Y Substitutes the division result of X and Y for variable A.
(division)
+ 10 A=X+Y Substitutes the addition result of X and Y for variable A.
(addition)
- 10 A=X-Y Substitutes the subtraction result of X and Y for variable A.
(subtraction)
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