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ProfitPress Mega CDROM2 …eeware (MSDOS)(1992)(Eng)
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ProfitPress-MegaCDROM2.B6I
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P4-21DC.SEQ
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1990-04-16
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396 b
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16 lines
\ Problem 4.21 04/16/90 16:07:08.17
\ Compute area of a circle to three decimal places.
: CIRCLE_AREA ( r -- )
DUP * 355 113 */MOD
." Area = " 5 .R \ ( 8 EMIT ) 1 BACKSPACES
ASCII . EMIT
5 0 DO
10 * 113 /MOD 1 .R \ ( 8 EMIT ) 1 BACKSPACES
LOOP DROP ;
: TEST_CIRC ( -- )
11 1 DO CR I CIRCLE_AREA LOOP ;