simple question

[Terrence Brannon]

Why is this screwing up?

function a = apha(V)
     n = -0.01*(V+60)
     d = exp(-(V+60)/10) - 1
     a = n/d
endfunction



octave:1> V=linspace(10,20,100);
octave:2> plot(V,apha(V));
error: __plt2vv__: vector lengths must match
error: evaluating index expression near line 50, column 5
error: evaluating if command near line 49, column 3
error: called from `__plt2vv__' in file 
`/usr/share/octave/2.0.5/m/plot/__plt2vv__.m'
error: called from `__plt2__' in file 
`/usr/share/octave/2.0.5/m/plot/__plt2__.m'
error: called from `__plt__' in file `/usr/share/octave/2.0.5/m/plot/__plt__.m'
error: called from `plot' in file `/usr/share/octave/2.0.5/m/plot/plot.m'
octave:2> 

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