The JACOBIAN statement defines the JACOBIAN matrix J for a system of objective functions. For more information, see the section "Derivatives". proc nlp tech=levmar; array j[2,2] j1-j4; lsq f1 f2; ...

IN the preface to his "Elliptic Functions", written in 1892, Prof. A. G. Greenhill complained that, although the subject was then nearly seventy years old, it had not made its way into the ordinary ...

LAS VEGAS — Jackson State football quarterback JaCobian Morgan exited the Tigers' game against Grambling State on Oct. 25 in the first quarter and didn't return in the Tigers' 26-24 loss. Redshirt ...

Jacobian Guillory was LSU football's best defensive tackle. At least that's what LSU coach Brian Kelly said about the fifth-year senior after the Tigers' 44-21 victory over Nicholls State on Saturday.

Let K[x,y] be the polynomial algebra in two variables over a field K of characteristic 0. A subalgebra Rof K[x,y] is called a retract if there is an idempotent homomorphism (a retraction, or ...