Commodore Plus 4 - Cartridges

BASIC Version 3.5 Commands, Functions, and System Variables 31
This replacement is how you use the generic formula you defined in the DEF FN
to solve a specific calculation.
3. The calculation must follow the rules for calculations.
Note: If BASIC RAM is moved by a GRAPHIC command after defining a
function, the function may not be evaluated properly. Enter (and immediately
leave if necessary) the graphic mode before you define the function.
Example: 10 DEP FNX(Y) = I1TT(A * 2 + Y)
15 INPUT A
20 PRINT FNX(35.2); FNX(19.9)
RUN
?5
45 29
DELETE
DELETE line number-line number
Defines the formula for function X.
Calls function X to use its formula
to solve for 35.2 and then for 19.9,
which replace Y in the function
formula.
Abbr. deL
Deletes BASIC program lines. You can issue this command only in immediate
mode, not in a BASIC program.
Parameter: line number(s)
You can delete one line at a time or a group of lines. To delete one line, just
enter the line number after the word DELETE. To delete a group of lines, enter
DELETE, then the first line number, a dash, and the final line number.
You can also delete all the lines from the beginning of the program up to a
certain line by entering DELETE followed by a dash and the last line you want to
delete. To delete all the lines from a certain line to the end of the program, enter
DELETE, the first line you want to delete and a dash.
Examples: DELETE 75
DELETE 150-250
DELETE -90
DELETE 140-
DIM
Deletes line 75.
Deletes lines 150 through (and including) 250.
Deletes all lines up to and including 90.
Deletes line 140 and all following lines to the end of
the program.
Abbr. dl
DIM array name (subscripts), array name (subscripts), etc.
Defines an array, which is also called a matrix. An array is a table of related
values that you can use as a unit or as individual data items. You can refer to any