#acornelectron

I may have 'accidentally' bought an Acorn Electron computer on ebay. So, never owned one, but did play with them in boots n whsmith as a kid when i was in. plus we had the old BEEB micro at school. so what to do first when it arrives? (I'll definately be checking the outrput of the powerpack before pluggin it in. learned that lesson well, RIP atari lynx.) #retrocomputing #acornComputers #acornelectron #bbccomputer #retrogaming

Tested various micros running this FLOATING POINT program. It derives Pi to 20 decimal places. Interesting stats. 1 N=20: L=INT(10*N/3): DIM A(255): Z$="000000":T$="999999" 2 FOR I=1 TO L: A(I)=2: NEXT I: M=0: P=0: FOR J=1 TO N: Q=0: K=2*L+1 3 FOR I=L TO 1 STEP -1: K=K-2: X=10*A(I)+Q*I: Q=INT(X/K): A(I)=X-Q*K: NEXT I 4 Y =INT(Q/10): A(1)=Q-10*Y: Q=Y: IF Q=9 THEN LET M=M+1: GOTO 7 5 IF Q=10 THEN PRINT STR$(P+1);LEFT$(Z$,M);: P=0: M=0: GOTO 7 6 PRINT STR$(P);LEFT$(T$,M);: P=Q: M=0 7 NEXT J:PRINT STR$(P) #RC2014 : 14 (thank you JonV) #BBCMicro : 19 #AmstradCPC : 22 (thank you Devlin) #AcornElectron : 25 #C128 : 27 (fast mode - thank you Jonas H) #VIC20 : 36 #AcornAtom : 37 #CBMPET : 43 #C64 : 43 #Dragon32 : 44 #C16 : 46 #Altair8800 : 52 #MSX : 53 (thank you Pixel Purrito) #C128 : 56 (default "mode") #ZX80 : 57 #ZXSpectrum : 68 (thank you Adam) Edit: now ordered (seconds)