Date post: | 21-Nov-2015 |
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Upload: | felipe-bento |
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vet=1:1:5 ;
cont=0;
for l=20:10:60
tang=atand(80/l);
A1=31.2/3;
A2=0;
A3=20.8*l^2;
A4=(-3896*l^2)-(10400/(sind(tang))^2);
poli=[A1 A2 A3 A4];
sol=roots(poli);
B1=sol(1);
B2=sol(2);
B3=sol(3);
if B1>0
cont=cont+1;
disp (B1)
vet(cont)=B1
end
if B2>0
cont=cont+1;
disp(B2)
vet(cont)=B2
end
if B3>0
cont=cont+1;
disp(B3)
vet(cont)=B3
end
end
l=20:10:60;
plot(l,vet)
title('l x h');
xlabel('l (ft)');
ylabel('h (ft)');