function B=price_obli(z)
B=exp(-z*linspace(1,10,10))*[linspace(3,3,9),103]'
endfunction

c = [3 3 3 3 3 3 3 3 3 103]
t = [1 2 3 4 5 6 7 8 9 10]

y=0:0.001:0.05

plot(y,price_obli(y))

error: price_obli: operator *: nonconformant arguments (op1 is 1x51, op2 is 1x10)
error: called from
    price_obli at line 2 column 26
error: evaluating argument list element number 1
error: called from
    price_obli at line 2 column 26
error: evaluating argument list element number 2