RosettaCodeData/Task/Fibonacci-sequence/FutureBasic/fibonacci-sequence-1.basic

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window 1, @"Fibonacci Sequence", (0,0,480,620)
local fn Fibonacci( n as long ) as long
static long s1
static long s2
long temp
if ( n < 2 )
s1 = n
exit fn
else
temp = s1 + s2
s2 = s1
s1 = temp
exit fn
end if
end fn = s1
long i
CFTimeInterval t
t = fn CACurrentMediaTime
for i = 0 to 40
print i;@".\t";fn Fibonacci(i)
next i
print : printf @"Compute time: %.3f ms",(fn CACurrentMediaTime-t)*1000
HandleEvents