For ages 9-12. 'Haley' Jackson grew up in poverty on the levees of New Orleans, hunting alligators along the Mississippi River for food and gathering driftwood for fuel with her brother Peter. But every Sunday, when her father preached at the Baptist Church, young Mahalia sang proudly in the choir -[...]
This text illustrates the fundamental simplicity of the properties of orthogonal functions and their developments in related series. Begins with a definition and explanation of the elements of Fourier series, and examines Legendre polynomials and Bessel functions. Also includes Pearson frequency fun[...]