133 lines
3.5 KiB
Plaintext
133 lines
3.5 KiB
Plaintext
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ZCALC Notes
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ZCalc is a spreadsheet program that uses a command structure similar to
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Lotus 1-2-3. The following notes describe the various commands. If the
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program doesn't do something that you'd like it to, feel free to modify it.
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In addition, if you see something in the source code that you'd like to use
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in your own programs, feel free to do so.
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KEYBOARD
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The following keys perform the following functions:
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{HOME} : Move the cell pointer position to A1
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{PGUP} : Move the cell pointer one page up
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{PGDN} : Move the cell pointer one page down
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{F6} : Go to a specific cell location
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{F9} : Recalculate the contents of the spreadsheet
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ENTERING NUMBERS, FORMULA AND LABELS
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To enter a formula, press the '=' sign and then type the formula. A
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formula can consist of numbers, cell references, and cell names.
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In addition, the four basic mathematical operators and parentheses are
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allowed. The program parses from left to right, with expressions inside
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parentheses evaluated first.
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Two functions are currently implemented. They are covered later in the
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notes.
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To enter a number, just type the number.
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To enter a label, enter the label, or if the label begins with a number,
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enter a double quote first.
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CELL REFERENCES
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Cell references consist of letters for columns and numbers for rows.
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Cells past column Z are represented by double letters: AA, AB and so on.
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Cell blocks are represented by the upper left and lower right
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coordinates separated by a comma. For example: A1,B2 B5,E10 etc.
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COMMANDS
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The command menu is brought up with the '/' key.
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A command can be executed by moving the bar to the command and pressing
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enter, or just hitting the first key of the command (upper case only).
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Sub-menus work in a similar fashion.
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FILE COMMAND
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The file command allows the user to load, save or delete a file.
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ERASE COMMAND
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The erase command erase the spreadsheet.
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COPY COMMAND
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The copy command allows a range of cells to be copied from one part
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of the spreadsheet to another.
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WIDTH COMMAND
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The width command allows the width a column to be adjusted.
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RANGE COMMAND
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The range command allows ranges of cells to be erased or formatted
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to look a different way.
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The command will first ask for the range, and then whether or not the
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range is to be deleted or re-formatted.
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INSERT COMMAND
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Insert allows the insertion of rows or columns in the spreadsheet. Cell
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references are adjusted.
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DELETE COMMAND
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Delete allows the deletion of rows or columns in the spreadsheet. Cell
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references are adjusted.
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PRINT COMMAND
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Print allows the spreadsheet to be printed.
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NAME COMMAND
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THe name command allows cells to be named, instead of referred to
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by just their address. For example cell F1 could be named TAX, allowing
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a formula like 'TAX*A1' instead of 'F1*A1'.
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MSDOS COMMAND
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This command returns temporarily to the operating system. Type EXIT
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from the DOS prompt to return to the spreadsheet.
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QUIT COMMAND
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The quit command allows the user to exit the program.
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MACROS
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Macros are supported. To create a macro, do this:
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1. Move to a cell and type a double quote followed by the keystrokes
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you would normally type for the command.
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2. Give this cell a name consisting of a backslash followed by a letter.
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3. To invoke the macro, type Ctrl and the letter.
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To use arrow and other special keys in a macro, type the key name
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inside brackets. For example: {UP} {RECALC} {JUMP} {PGDN}.
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