2016 Update

Task/Continued-fraction/ZX-Spectrum-Basic/continued-fraction.zx

@@ -0,0 +1,11 @@
+10 LET a0=1: LET b1=1: LET a$="2": LET b$="1": PRINT "SQR(2) = ";: GO SUB 1000
+20 LET a0=2: LET b1=1: LET a$="N": LET b$="N": PRINT "e = ";: GO SUB 1000
+30 LET a0=3: LET b1=1: LET a$="6": LET b$="(2*N+1)^2": PRINT "PI = ";: GO SUB 1000
+100 STOP
+1000 LET n=0: LET e$="": LET p$=""
+1010 LET n=n+1
+1020 LET e$=e$+STR$ VAL a$+"+"+STR$ VAL b$+"/("
+1030 IF LEN e$<(4000-n) THEN GO TO 1010
+1035 FOR i=1 TO n: LET p$=p$+")": NEXT i
+1040 PRINT a0+b1/VAL (e$+"1"+p$)
+1050 RETURN