请教matlab积分怎么积分？？？

littlestupid

matlab积分怎么积分？                         

i=1:0.01:pi;
x=1:0.01:pi;
1 C4 y0 y. s1 U( F% s  MN1=13;
7 T% \8 P5 q' l6 J  O8 Z2 E
) Z. T% L+ E/ x+ L7 PN2=15;

for i=1:pi+1
0 f9 h4 P7 r9 i9 d/ G5 b" y3 k   if 0.4*pi+1<=x(i)+1 && x(i)+1<=0.6*pi+1
0 k# b: B$ ~& n# ?6 n   phi_2(i)=(N2-N1)*x(i)+1/2;
* n+ j. v1 K' [, e! ?   end
    if 0.0*pi+1<=x(i)+1 && x(i)+1<=0.2*pi+1
& H4 w8 R1 ?/ y6 v9 s, E+ N$ z    phi_2(i)=((N2-N1)*x(i)+1+pi)*0.5;
2 n: U# k' e6 C' d" x, q4 g
0 M2 k- z$ R# j5 l0 `, P    end
end

syms i;
Er=1-abs(exp(1j*(phi_2(i)-((N1+N2)/2)*i)).*cos(((N2-N1)/2)*i-phi_2(i) )).^2;

s=int((Er),0.4*pi,0.6*pi);

- f# A9 g, Q8 Z

loveeatmore

是同行，只是我是菜鸟