Anonymous user
Ethiopian multiplication: Difference between revisions
AutoIt comes AFTER AutoHotkey :-) .
(AutoIt comes AFTER AutoHotkey :-) .) |
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</pre>
=={{header|AutoHotkey}}==▼
<lang AutoHotkey>MsgBox % Ethiopian(17, 34) "`n" Ethiopian2(17, 34)▼
; func definitions:▼
half( x ) {▼
return x >> 1▼
}▼
double( x ) {▼
return x << 1▼
}▼
isEven( x ) {▼
return x & 1 == 0▼
}▼
Ethiopian( a, b ) {▼
r := 0▼
While (a >= 1) {▼
if !isEven(a)▼
r += b▼
a := half(a)▼
b := double(b)▼
}▼
return r▼
}▼
; or a recursive function:▼
Ethiopian2( a, b, r = 0 ) { ;omit r param on initial call▼
return a==1 ? r+b : Ethiopian2( half(a), double(b), !isEven(a) ? r+b : r )▼
}</lang>▼
=={{header|AutoIt}}==
Line 188 ⟶ 220:
MsgBox(0, "Ethiopian multiplication of 17 by 34", Ethiopian(17, 34) )
</lang>
▲=={{header|AutoHotkey}}==
▲<lang AutoHotkey>MsgBox % Ethiopian(17, 34) "`n" Ethiopian2(17, 34)
▲; func definitions:
▲half( x ) {
▲ return x >> 1
▲}
▲double( x ) {
▲ return x << 1
▲}
▲isEven( x ) {
▲ return x & 1 == 0
▲}
▲Ethiopian( a, b ) {
▲ r := 0
▲ While (a >= 1) {
▲ if !isEven(a)
▲ r += b
▲ a := half(a)
▲ b := double(b)
▲ }
▲ return r
▲}
▲; or a recursive function:
▲Ethiopian2( a, b, r = 0 ) { ;omit r param on initial call
▲ return a==1 ? r+b : Ethiopian2( half(a), double(b), !isEven(a) ? r+b : r )
▲}</lang>
=={{header|AWK}}==
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