0x1 empty double row vector

Hi,

When i try to solve this:

x=(-200:-175:-150:-125:-100:-75:-50:-25:0:20:40:60:80:100)

f1=[5E-08 -3E-05 -0.0058 1.0479 177.56]

y1=polyval(f1,x)

plot(x,y1)

I says: 0x1 empty double row vector

It works with only positive numbers, how do i get it to work with the negative numbers?

Answer 1

[madhan ravi]

 x = [-200:25:0, 20:20:100]

[Kenneth Bisgaard Cristensen]

Thsank you so much, that was a huge help :)