Please help me with this program as I am not getting the smooth curve??

    clear all;
W=360*10^-9;
Vth=1;
lambda=25*10^-5;
un=100;
Cox=1*10^-6;
Leff=180*10^-9;
ld=0.1;
vds=0:0.5:10;
Ec=1;
vgs=input('ENTER THE Vgs in volts');
m=length(vds)
for i=1:m
if vgs < Vth
current(1,i)=0;
elseif vds(i) >= (vgs - Vth)
current(1,i)=(2*W*un*Cox/Leff-ld+(vds(i)/Ec)) +(lambda*2*W*Cox/(Leff-ld)^2)*((vgs-Vth)*vds(i)-0.5*vds(i)^2);
end
end
plot(vds,current(1,:),'b')
xlabel('Vds, V')
ylabel('Drain Current,A')
title('I-V Characteristics of a MOSFET')

Answer 1

[Matt J]

Sample the curve at more points.

[ARTI]

I didn't get you sir. how to do it as I am new to this software. Moreover the plot must me same as that of Ids vs Vds characteristics of mosfet.

[Matt J]

your vds(i) are separated by 0.5. They need to be separated by less.

[ARTI]

i tried sir but the result is more or less same