surf command in GNU octave

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MatLab

GNU

I want to plot a 3D plane in GNU Octave using the surf command.

I have following data e.g

a= [ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17];

b= [ 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011];

c= [ -0.88 -8.87 -0.86 -0.82 -0.77 -0.71 -0.66 -0.62 -0.57 -0.54 -0.50 -0.47 -0.44 -0.42 -0.39 -0.377 -0.36 -0.89 -0.88 -0.85 -0.81 -0.76 -0.71 -0.66 -0.61 -0.57 -0.53 -0.50 -0.47 -0.44 -0.42 -0.39 -0.37 -0.36];
I could plot it using plot3 command..

But how should I plot it by using surf command in GNU Octave?