Array of function pointer row pointer pointers

Tidy up the room, turn out a piece of stationery, think of the previous reading notes. As follows:

typedef double (* fun-ptr) (int);

Fun-ptr A pointer to a function that has an int parameter and returns a double. Analogy Imagination: Double fun-name (int a);

Row pointer: double (* data) [5];

Data is a pointer to an array that contains 5 double. Analogy imagination: Double Data-array [5];

Double * data [5];

Data is an array that contains 5 pointers to a double.

Array of function pointer row pointer pointers