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Text File  |  1993-10-16  |  256b  |  6 lines
  1. # diff(sin(x), x = 0)        # differentiate sin(x) when x = 0
  2. # diff(sin(x), x = 0, 3)    # differentiate sin(x) in order of 3 when x = 0
  3.  
  4. diff(y_, x_) := subs(d(y, left(x)), left(x) = right(x))
  5. diff(y_, x_, n_) := subs(d(y, left(x), n), left(x) = right(x))
  6.