__init__(self,
        A=None,
        b=None)
     (Constructor)
  
   | source code 
     | 
    
  
  Class for the creation of linear inequality constraint functions and 
  gradients. 
  The constraints are in the form: 
   A.x >= b
 
  where: 
  
    - 
      A is an m*n matrix where the rows are the transposed vectors, ai, of 
      length n.  The elements of ai are the coefficients of the model 
      parameters.
    
 
    - 
      x is the vector of model parameters of dimension n.
    
 
    - 
      b is the vector of scalars of dimension m.
    
 
    - 
      m is the number of constraints.
    
 
    - 
      n is the number of model parameters.
    
 
   
  E.g. if 0 <= q <= 1, q >= 1 - 2r, and 0 <= r, then: 
   | 1  0 |            |  0 |
   |      |            |    |
   |-1  0 |   | q |    | -1 |
   |      | . |   | >= |    |
   | 1  2 |   | r |    |  1 |
   |      |            |    |
   | 0  1 |            |  2 |
 
  
   
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