First input argument must be a function handle. A must be a finite, scalar, floating point constant. B must be a finite, scalar, floating point constant. C must be a finite, scalar, floating point constant or a function handle. D must be a finite, scalar, floating point constant or a function handle. Non-finite result. The integration was unsuccessful. Singularity likely. Reached the minimum rectangle size. The result fails the global error test. Reached the minimum rectangle size. The result passes the global error test. Lower limit size mismatch: size(C(x)) does not match size(x). C(x) must be a finite. Upper limit size mismatch: size(D(x)) does not match size(x). D(x) must be a finite. Integrand output size does not match the input size. Invalid AbsTol Invalid RelTol Singular option must be true or false. FailurePlot option must be true or false. MaxFunEvals must be a positive integer scalar. RelTol was increased to 100*eps(''{0}'') = {1}. Reached the maximum number of function evaluations ({0,number,integer}). The result fails the global error test. Reached the maximum number of function evaluations ({0,number,integer}). The result passes the global error test. Integrand function outputs did not match to the required tolerance when the same input values were supplied in two separate calls with different size input matrices. Check that the function is vectorized properly.