请教matlab积分怎么积分？？？

littlestupid

matlab积分怎么积分？                         

i=1:0.01:pi;
8 l# \6 M' B$ `$ Qx=1:0.01:pi;
N1=13;
3 a8 ~9 t' x9 ^* O: h
N2=15;

for i=1:pi+1
# D3 t) X' W. D+ b8 X$ p   if 0.4*pi+1<=x(i)+1 && x(i)+1<=0.6*pi+1
* d  i. P$ E# z, m) s4 t0 \   phi_2(i)=(N2-N1)*x(i)+1/2;
   end
    if 0.0*pi+1<=x(i)+1 && x(i)+1<=0.2*pi+1
' w( g' ^4 t& d; z* L    phi_2(i)=((N2-N1)*x(i)+1+pi)*0.5;
# _9 Q/ [6 L3 u' z: B; _1 n
* z0 \( T" r' ^: ?    end
end

syms i;
, j+ W: C- v; f( q6 U2 aEr=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);

loveeatmore

是同行，只是我是菜鸟