Hore are two more ‘pretty picture’ plotting programe. the
first is from fir. D-P. Jackson of Harworth, Ne. Doncaster.
10 CLS:Psa5sLe1:T=1:60T0 30
20 P=1803 T=2
30 Y=20: 2=a0:FOR W=1 TO 20:FOR C=1 TOP.
420 B=SIN(C) #Y+21:A=COS(C) #Z+4520N T GOSUB 110,120
50 NEXT: Y=aY-1;Z=2-2:NEXT:FOR D=i& TO STEP -5
60 FOR A“17-D TO 72+D:FOR B-D-1 TO 42-D
70 GOSUE 110:NEXT B,A,DsL=L+0.5:1F LC2 GOTO 30
Go IF Les THEN L=4:60T0 20
90 L=L-1s1F LoS THEN &=a31-1:P=45
100 GOTO. 30
110 E=POINT (A,B): 1F
120 SET (A,B) RETURN
THEN RESET (A, B : RETURN
The second offering comes from Mr. Ned. Thomas of Kings Lynn
and 15 a8 follows.
10 CLSsHe9s: v=44
20 X1=H/ 2s X2=KL eK Es YIU /28Y2=0/4
30 FOR X=0 TO X1:X4=XexsMe-Vi
40 A=SOR (x2-X4)
50 FOR T=-a TO A STEP v/10
SO ReSOR (xaeT# 1) /X1
70 Fe(f-t) eSIN(Re12)2REM THIS TS THE LINE TO CHANGE
90 1F Yom THEN 120
110 SET CLIX, 9) 2SET OS 4X, Y9
120 NEXT 1,X
fir. Thomas also points out that anyone who has a Nascom #
and Econogeaphics will run inte probleme when trying to at the
Bhowdinger (1) circuit. They both try and sit over the same
Place. He suggests that Snowdinger be brought out on ribbon
Cable to hang beside the PIO.
Finally, can anyone tre up the PIO pin outs of the Nascom 1
and 2/80 that the EPROM Programmer circuit can be built by
Nascom 1 omers.
Besides articles for the magazine, these are the only two
letters that I have had since the last issue. I don’t think that
you are really trying. @ nice feature to add to the magazine
Would be a permanent letters page in which we could set up a
Problem and answer series, Fire away.