What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?
Starting with two basic vector steps, which destinations can you reach on a vector walk?
Have you ever wondered what it would be like to race against Usain Bolt?
Charlie likes to go for walks around a square park, while Alison likes to cut across diagonally. Can you find relationships between the vectors they walk along?
How can Agent X transmit data on a faulty line and be sure that her message will get through?
What happens when we square complex numbers? Can the square of a complex number be real?
In this problem, we define complex numbers and invite you to explore what happens when you add and multiply them.