New Concepts in Magic Squares: Cornered Magic Rectangles in Construction of Magic Squares of Orders 24 and 26

This work brings magic squares of orders 24 and 26. These are constructed based on cornered magic rectangles and/or cornered magic squares. Order 24 is with four equal sums cornered magic squares of order 12x12. The order 26 is with four equal sums cornered magic rectangles. It is done with three types of centered magic squares of orders 6, 10 and 14. In each case we have 3 different styles. Pdf file of the work is available at author's site.