method

jacobian

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jacobian(f,fx,x) public

Computes the Jacobian of f at x. fx is the value of f at x.

# File ext/bigdecimal/lib/bigdecimal/jacobian.rb, line 77
  def jacobian(f,fx,x)
    n = x.size
    dfdx = Array.new(n*n)
    for i in 0...n do
      df = dfdxi(f,fx,x,i)
      for j in 0...n do
        dfdx[j*n+i] = df[j]
      end
    end
    dfdx
  end

jacobian

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