fun1=@(x,y,z)log((x^2+y^2+z^2);g=triplequad(fun1,90,110,50,70,20,40)Errorusing==>mpowerInputsmustbeascalarandasquarematrix.Errorin==>@(x,y,z)log(x^2+y^2+z^2)Errorin==>quadat77y=f(x,varargin{:});Errorin==>triplequad>innerintegr

Question

fun1=@(x,y,z)log((x^2+y^2+z^2);g=triplequad(fun1,90,110,50,70,20,40)
Error using ==> mpowerInputs must be a scalar and a square matrix.
Error in ==> @(x,y,z)log(x^2+y^2+z^2)
Error in ==> quad at 77y = f(x,varargin{:});
Error in ==> triplequad>innerintegral at 69 Q(i) = quadf(intfcn,xmin,xmax,tol,trace,y(i),z,varargin{:});
Error in ==> dblquad>innerintegral at 80fcl = intfcn(xmin,y(1),varargin{:}); %evaluate only to get the class below
Error in ==> quad at 77y = f(x,varargin{:});
Error in ==> dblquad at 60Q = quadf(@innerintegral,ymin,ymax,tol,trace,intfcn,...
Error in ==> triplequad at 53Q = dblquad(@innerintegral,ymin,ymax,zmin,zmax,tol,quadf,intfcn,...

Answer 1

矩阵运算要在运算符前加点的.