matlab中的积分函数Warning:Explicit integral could not be found.syms Dd Dd0 x y z Wn theta Ue Ve n s p qDd0=10^(-3);Wn=((2*n+1).*pi.*x.*Dd0)/(3.6);Dd=Dd0.*tanh(1.76.*sqrt((1/x)-1));Ue=sqrt((1+sqrt(1+(Dd^2.*(sin(2.*theta)).^2)./(Wn.^2)))/2);Ve=sq
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![matlab中的积分函数Warning:Explicit integral could not be found.syms Dd Dd0 x y z Wn theta Ue Ve n s p qDd0=10^(-3);Wn=((2*n+1).*pi.*x.*Dd0)/(3.6);Dd=Dd0.*tanh(1.76.*sqrt((1/x)-1));Ue=sqrt((1+sqrt(1+(Dd^2.*(sin(2.*theta)).^2)./(Wn.^2)))/2);Ve=sq](/uploads/image/z/12552512-32-2.jpg?t=matlab%E4%B8%AD%E7%9A%84%E7%A7%AF%E5%88%86%E5%87%BD%E6%95%B0Warning%3AExplicit+integral+could+not+be+found.syms+Dd+Dd0+x+y+z+Wn+theta+Ue+Ve+n+s+p+qDd0%3D10%5E%28-3%29%3BWn%3D%28%282%2An%2B1%29.%2Api.%2Ax.%2ADd0%29%2F%283.6%29%3BDd%3DDd0.%2Atanh%281.76.%2Asqrt%28%281%2Fx%29-1%29%29%3BUe%3Dsqrt%28%281%2Bsqrt%281%2B%28Dd%5E2.%2A%28sin%282.%2Atheta%29%29.%5E2%29.%2F%28Wn.%5E2%29%29%29%2F2%29%3BVe%3Dsq)
matlab中的积分函数Warning:Explicit integral could not be found.syms Dd Dd0 x y z Wn theta Ue Ve n s p qDd0=10^(-3);Wn=((2*n+1).*pi.*x.*Dd0)/(3.6);Dd=Dd0.*tanh(1.76.*sqrt((1/x)-1));Ue=sqrt((1+sqrt(1+(Dd^2.*(sin(2.*theta)).^2)./(Wn.^2)))/2);Ve=sq
matlab中的积分函数Warning:Explicit integral could not be found.
syms Dd Dd0 x y z Wn theta Ue Ve n s p q
Dd0=10^(-3);
Wn=((2*n+1).*pi.*x.*Dd0)/(3.6);
Dd=Dd0.*tanh(1.76.*sqrt((1/x)-1));
Ue=sqrt((1+sqrt(1+(Dd^2.*(sin(2.*theta)).^2)./(Wn.^2)))/2);
Ve=sqrt((1-sqrt(1+(Dd^2.*(sin(2.*theta)).^2)./(Wn.^2)))/2);
p=(Dd^2.*(sin(2.*theta)).^2.*exp(-2.*Wn.*cos(theta).*0.1));
q=sqrt(Wn.^2+Dd.^2.*(sin(2.*theta)).^2).*(Ue.^4+Ve.^4.*exp(-4.*Wn.*cos(theta).*0.1));
z=p./q;
s=int(z,theta,-pi/2,pi/2);
Warning:Explicit integral could not be found.
matlab中的积分函数Warning:Explicit integral could not be found.syms Dd Dd0 x y z Wn theta Ue Ve n s p qDd0=10^(-3);Wn=((2*n+1).*pi.*x.*Dd0)/(3.6);Dd=Dd0.*tanh(1.76.*sqrt((1/x)-1));Ue=sqrt((1+sqrt(1+(Dd^2.*(sin(2.*theta)).^2)./(Wn.^2)))/2);Ve=sq
既然定义了字符,就用solve,解出符号解,再用eval代入数值