HP 7470A Interfacing And Programming Manual page 55

'\ K X Z / ',/
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\ \ -2- /
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The following BASIC program shows that the circle instruction can
also be used to define a series of circles that must be repeated in a
particular pattern.
10 PRINTER Is 10
20 PRINT"IN;sP1;IP2ssn,132s,7sso,s32s;"
an PRINT ~sc—1nno,1non,—1ooo,1ooo;w
4n PRINT "FR-BOO,800;"
so nnsun 130
so PRINT "PH200,B00;"
70 nnsua 130
so PRINT "PH-BOO,-200;"
so ensue 130
100 PRINT "PR2nn,—2oo;"
110 ensue 130
120 END
130 PRINT "CI50;PRSO0,0;CI50;PR-300,—30m;CI25D;"
140 PRINT "PR-300,-300;CISO;PR600,0;CISU;"
150 RETURN
Line 10 defines the select code of the interface; change this statement
as necessary for your computer.
CONTROLLING THE PEN AND PLOTTING 3-15