Safe and Sophie Germain primes: Difference between revisions
Safe and Sophie Germain primes in various BASIC dialents
Alextretyak (talk | contribs) (Added 11l) |
(Safe and Sophie Germain primes in various BASIC dialents) |
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od;</lang>
=={{header|
==={{header|FreeBASIC}}===
<lang freebasic>function isprime(n as integer) as boolean
if n < 2 then return false
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1049 1103 1223 1229 1289 1409 1439 1451 1481 1499</pre>
==={{header|GW-BASIC}}===
<lang gwbasic>10 PRINT "2 ";
20 C = 1
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280 Z = 1
290 RETURN</lang>
==={{header|BASIC256}}===
<lang freebasic>function isPrime(v)
if v < 2 then return False
if v mod 2 = 0 then return v = 2
if v mod 3 = 0 then return v = 3
d = 5
while d * d <= v
if v mod d = 0 then return False else d += 2
end while
return True
end function
function isSG(n)
if not isPrime(n) then return False
return isPrime(2*n+1)
end function
c = 1
i = 1
print "2 ";
while c < 50
i += 2
if isSG(i) then
print i; chr(9);
c += 1
if c mod 10 = 0 then print
end if
end while
end</lang>
==={{header|PureBasic}}===
<lang PureBasic>Procedure isPrime(v.i)
If v <= 1 : ProcedureReturn #False
ElseIf v < 4 : ProcedureReturn #True
ElseIf v % 2 = 0 : ProcedureReturn #False
ElseIf v < 9 : ProcedureReturn #True
ElseIf v % 3 = 0 : ProcedureReturn #False
Else
Protected r = Round(Sqr(v), #PB_Round_Down)
Protected f = 5
While f <= r
If v % f = 0 Or v % (f + 2) = 0 :
ProcedureReturn #False
EndIf
f + 6
Wend
EndIf
ProcedureReturn #True
EndProcedure
Procedure isSG(n.i)
If Not isPrime(n) : ProcedureReturn #False : EndIf
ProcedureReturn isPrime(2*n+1)
EndProcedure
OpenConsole()
c.i = 1
i.i = 1
Print("2 ")
While c < 50
i + 2
If isSG(i):
Print(Str(i) + #TAB$)
c + 1
If c % 10 = 0 : PrintN("") : EndIf
EndIf
Wend
Input()
CloseConsole()</lang>
==={{header|Yabasic}}===
<lang freebasic>sub isPrime(v)
if v < 2 then return False : fi
if mod(v, 2) = 0 then return v = 2 : fi
if mod(v, 3) = 0 then return v = 3 : fi
d = 5
while d * d <= v
if mod(v, d) = 0 then return False else d = d + 2 : fi
wend
return True
end sub
sub isSG(n)
if not isPrime(n) then return False : fi
return isPrime(2*n+1)
end sub
c = 1
i = 1
print "2 ";
while c < 50
i = i + 2
if isSG(i) then
print i, " ";
c = c + 1
if mod(c, 10) = 0 then print : fi
endif
wend
end</lang>
=={{header|jq}}==
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