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jbev_sin [2026/05/27 15:47] adminjbev_sin [2026/05/27 16:09] (current) admin
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 <code>1 A=39+39*SIN(T):B=39+39*COS(T*I):IF A>B SWAP A,B:?TAB(A)STRING$(B-A,46)"*":T=T+.1:I=I+.001:GOTO 1</code> <code>1 A=39+39*SIN(T):B=39+39*COS(T*I):IF A>B SWAP A,B:?TAB(A)STRING$(B-A,46)"*":T=T+.1:I=I+.001:GOTO 1</code>
 +
 +**VAX VMS Basic** \\
 +
 +<code>10  ! Centered Asterisk Ribbon Pattern
 +20  D$ = "................................................................................"
 +30  W = 38
 +40  T = 0.0
 +50  I = 0.0
 +60  A = INT(W + W * SIN(T))
 +70  B = INT(W + W * COS(T * I))
 +80  L = A
 +90  R = B
 +100 IF L <= R GOTO 130
 +110 L = B
 +120 R = A
 +130 M1 = INT((R - L) / 2)
 +140 M2 = (R - L) - M1
 +150 PRINT TAB(L); LEFT$(D$, M1); "*"; LEFT$(D$, M2)
 +160 CALL LIB$WAIT(0.05)
 +170 T = T + 0.125
 +180 I = I + 0.001
 +190 IF I < 0.97 GOTO 60
 +200 GOTO 40</code>
 +
 +**TRS-80 (Tested on a MDL3)**
 +
 +<code>5 D$="................................................................"
 +90 W=63
 +100 W=W/2:H=W-1
 +110 T=T+.125
 +120 I=I+.001
 +121 A=INT(W+H*SIN(T))
 +130 B=INT(W+H*COS(T*I))
 +140 IF A<B THEN L=A:R=B
 +150 IF A>B THEN L=B:R=A
 +155 IF A=B THEN PRINT TAB(L);"*":GOTO 240
 +156 M=INT((L+R)/2)
 +160 M=M-L
 +180 R=R-(M+L)
 +185 IF M=0 THEN PRINT TAB(L);"*";LEFT$(D$,R):GOTO 240
 +190 PRINT TAB(L);LEFT$(D$,M);"*";LEFT$(D$,R)
 +240 IF I<.9690001 THEN 110
 +270 I=0:T=0:GOTO 110</code>
 +
  
  
  
jbev_sin.1779896841.txt.gz · Last modified: by admin