NAG Library Manual, Mark 27.2
Interfaces:  FL   CL   CPP   AD 

NAG FL Interface Introduction
Example description

 E04BBF Example Program Results

 The minimum lies in the interval 4.49340946 to 4.49340952
 Its estimated position is 4.49340946,
 where the function value is -0.2172
 and the gradient is -3.8E-16 (machine dependent)
  6 calls of FUNCT were required