So that you can see how the program works, we’ll present the steps used to create the symbol for Mercury. First is the grid we used to design the character.

8

7

6

5

4

3

2

1

123456789

Figure 8-3. Design for character

Running the program

Now run the program. For each of the nine columns, the program asks for the numbers of the rows in which you want dots to appear. Enter the row numbers one at a time, pressing the RETURN key after each one. When you have entered all the numbers for a column or when you want no dots in a column, press RETURN without a number. Remember that the vertical lines in the grid are the even-numbered columns.

To see Program 1 produce the character in Figure 6-4 run the program and follow these instructions: When the screen message asks what rows have dots in column 1, respond with RETURN to indicate that no dots go in that column. For column 2 (the vertical line), press 7, RETURN, 5, and RETURN again to indicate that you want dots in rows 7 and 5. Then press RETURN alone to indicate that no more dots go in column 2. For column 3 press 8, 6, 4, and 2, with a RETURN after each of them. Then press RETURN to finish with column 3 and go on to column 4.

For column 4 press RETURN only. (The rest of the directions assume that you know to press RETURN after each number and one extra time to end the entries for each column.) For column 5, enter 6, 4, 3, 2, and 1. For column 6, press RETURN only; for column 7 enter 8,6,4, and 2; for column 8 enter 7 and 5; and for column 9 press RETURN only.

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