Fibonacci numbers in gnuplot

Example for versions gnuplot 4.2.2

gnuplot provides no loops, and printing each number with a separate print command makes it appear on separate line, so a string variable res is used to accumulate the calculated numbers for printing after “looping”. 

### run.gp
#!/usr/bin/env gnuplot
i = 1
a = 1
b = 1
res = ''
load "fibonacci.gp"
print res, '...'

### fibonacci.gp
res = res . a . ', '
c = a
a = b
b = b+c
i = i+1
if (i <= 16) reread