# Monthly Archives: August 2014

# Classwork and homework for D1

Notes. Continue reading

# Classwork and homework for FP1 complex numbers

# Hedy Lamarr and computer science

The picture above is the world’s first electronic computer, Colossus, in 1944. Its operators are women.

This picture is Hedy Lamarr, a film star between the 1930s and the 1950s. In 1941, at the height of her film career, she invented an algorithm for spread-spectrum broadcasting. She couldn’t get it taken up at the time, but she won a scientific award for it in 1997. Continue reading

# “Decision maths”: where it comes from, where it goes

In this course you learn 15 or so new how-to-calculate instruction lists (called *algorithms*) and how to use them. The main thing you need for the exam is to be confident and fluent with those algorithms.

# Classwork and homework for FP1 (lessons 15-20: matrices)

Notes.

# Bin-packing algorithms

Most of the research on bin-packing algorithms starts in the 1970s and the 1980s, in the USA. One of the noted researchers, Ron Graham, is also a talented juggler and former circus performer. Continue reading

# Classwork and homework for FP1 (lessons 26-29: parabolas and hyperbolas; parametrics)

# The 2014 Fields Medals

The Guardian website published a good, clear account, from the International Mathematical Union, of the medallists’ work.

# The Gantt chart and socialism

Edexcel A-level “Decision Mathematics” (D1) covers the Gantt chart. It was the earliest project management tool, in the run-up to World War 1, and appears now as a simplified version of critical path analysis, simple and flexible enough to be used even for small projects.