•Errata

• page 14, 14th line from the bottom: ≠ r² should be π r²
• page 23, 9th line from the top: ↑ should be ≠
• page 79, 7th line from the bottom: ↑ should be ≠
• pages 101 - 108: In all of the tables in the "Fitting Polynomials..." section, the headings should be

  n

  ···

  
  
• page 109, 11th line from the bottom: Should be "as cos(θ + 2θ):"
• page 162, 8th line from the bottom should be

  "• md1*md2 = -1 ..."