m300241@BartvS-MBP2:~/meteo/models/smallprograms/cython_diff$ ./diff
at=5369036.820000
time/iter = 0.004353 s (1000 iters)
m300241@BartvS-MBP2:~/meteo/models/smallprograms/cython_diff$ python diff.py
at=5369036.820000
time/iter = 0.013870 s (1000 iters)
m300241@BartvS-MBP2:~/meteo/models/smallprograms/cython_diff$ julia diff.jl
at=5.36903682e6
time/iter =0.01245571348 s (1000) iters)