Sunday, March 28, 2010

Lima Beans, Hearts, and Roses!

  • Limacon - Looks like a lima bean!
    • r = a+b sin theta
    • r = a+b cos theta

  • Cardioid - Looks like a heart!
    • a-b sin theta
    • a-b cos theta

  • Rose - Looks like a ...rose.
    • r = a sin (number of petals) theta
    • r = a cos (number of petals) theta 

  • Archimedes Spiral - The black and white spiral that hypnotizes people in the cartoons.
    • r = a theta +b

  • Logarithmic Spiral - Looks like a ...spiral.
    • r=a^theta b

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