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Results for: History

Further Twists of the Moebius Strip 2

The equations generating a surf plot of the Moebius strip can be parameterized and the parameters allowed to take on expanded values. The results are a family of surfaces that I have been displaying for as long as I have had computer graphics available.... read more >>

Dark Energy Gravitational Waves

Recent theoretical, observational and computational results establish the possibility that gravitational waves produced by the dark energy created at the dawn of the universe affect the clock rate of silicon digital processors operating at very low temperatures.... read more >>

Piet Hein, Super Ellipses and Soma Cubes 3

An extraordinarily creative Danish mathematician, inventor, and poet who often wrote under the Old Norse pseudonym "Kumbel" meaning "tombstone." A direct descendant of the Dutch naval hero of the 16th century who had the same name, Piet Hein was born in Copenhagen and studied at the Institute for Theoretical Physics of the University of Copenhagen (later the Niels Bohr Institute) and the Technical University of Denmark. ... read more >>

The Classic Crossed Ladders Puzzle

Here is a classic puzzle. A pair of ladders leaning against the sides of an alley form a lopsided cross. Each ladder is propped against the base of one wall and leans against the opposite wall. If one ladder is 30 feet long, the other 20 feet long, and the point where they cross 10 feet above the ground, how wide is the alley?... read more >>

Testing Zero Finders 2

Use the historic cubic polynomial $x^3 - 2x - 5$ to test a few zero-finding algorithms. ... read more >>

A Historic Cubic 2

The cubic polynomial $x^3 - 2x - 5$ has a unique place in the history of numerical methods.... read more >>

John Todd, Savior of Oberwolfach 2

This is the story of how John Todd saved what was to become one of the world's most important research institutions from destruction at the end of World War II.... read more >>

Trip Report: SuperComputing 2015

SC15, the International Conference for High Performance Computing, Networking, Storage and Analysis, was held in Austin, Texas, last week, November 15 through 20. This is the largest trade show and conference that MathWorks participates in each year.... read more >>

Zeroin, Part 3: MATLAB Zero Finder, FZERO

MATLAB adds capability to search for an interval with a sign change.... read more >>

Zeroin, Part 2: Brent’s Version 2

Richard Brent's improvements to Dekker's zeroin algorithm, published in 1971, made it faster, safer in floating point arithmetic, and guaranteed not to fail. ... read more >>

Posts 91 - 100 of 150