When a display changing operation is performed after a shift is made to a rotation mode, a display input device performs a rotation display of an object, and increases a rotation angle of the object per unit movement amount of a predetermined touch point according as a distance between two points touched in a mode switching operation is larger. When a display changing operation is performed after a shift to an enlargement/reduction mode, the display input device performs an enlargement/reduction display of the object, and increases an enlargement amount or a reduction amount of the object per unit movement amount of the predetermined touch point according as the distance between the two touch points touched in the mode switching operation is larger.