$\definecolor{red}{RGB}{255,0,0}$$\definecolor{black}{RGB}{0,0,0}$
  1. K
  2. K
  4. K
    • K  =   b/a
  1. a
  2. a
  4. a
    • (K+1)·x  =  K·ao-bo, puis: a = ao-x
  1. b
  2. b
  4. b
    • (K+1)·x  =  K·ao-bo, puis: b = bo+x
  1. ao
  2. ao
  4. ao
  1. bo
  2. bo
  4. bo