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There are 6 NRICH Mathematical resources connected to Complex numbers, you may find related items under Place value and the number system.
Broad Topics > Place value and the number system > Complex numbersThis problem in geometry has been solved in no less than EIGHT ways by a pair of students. How would you solve it? How many of their solutions can you follow? How are they the same or different? Which do you like best?
This collection is designed to give an introductory taste of complex numbers.
What happens when we multiply a complex number by a real or an imaginary number?
Ranging from kindergarten mathematics to the fringe of research this informal article paints the big picture of number in a non technical way suitable for primary teachers and older students.
Triangle ABC has equilateral triangles drawn on its edges. Points P, Q and R are the centres of the equilateral triangles. What can you prove about the triangle PQR?