RosettaCodeData/Task/Fibonacci-sequence/Tcl/fibonacci-sequence-2.tcl
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2013-04-10 21:29:02 -07:00

3 lines
105 B
Tcl

proc fib {n} {
if {$n < 2} then {expr {$n}} else {expr {[fib [expr {$n-1}]]+[fib [expr {$n-2}]]} }
}