Atari 65XE, Owner'S Manual

Page: 58 / 135

MATH PROGRAMS
The computer's mathematical functions can be used for work pur-
poses, as well as for play. If you were a chef who prepared food for
banquets, you might need a computer to expand your recipes. For
instance, suppose that you are trying to figure out how many pounds
of sea scallops to buy to serve Coquilles St. Jacques at a dinner for 62
guests. Your recipe indicates that 1 1/2 pounds of scallops feeds 5
people. The program below would tell you how many pounds to buy:
NEW
1 REM *** COQUILLE ***
10 PRINT " "
20 GUESTS=62
30 P O U N D S T O B U Y = 1.5/5 * GUESTS
40 PRINT:PRINT "BUY " ; P O U N D S T O B U Y ; " POUNDS OF
SCALLOPS."
50 END
The program produces the answer (18.6 pounds of scallops), but a
calculator would achieve the same result with less work To make the
program more useful, allow a variation in the number of guests by in-
serting an INPUT statement. Type in the additional lines below:
15 PRINT : PRINT "HOW M A N Y GUESTS DO YOU EXPECT?"
20 INPUT GUESTS
Run the program several times, entering a different number of guests
each time. The amount of scallops needed changes each time. For
200 guests, 60 pounds of scallops are required; for 436 guests, 130.8
pounds. The INPUT function makes the program more practical.
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