SUBROUTINE FCNJ

X = the continuity parameter (algebraic equations) or independent variable (differential equations)  

YPRIME(N) gives the residuals when solving algebraic equations it gives the derivatives dy/dx when solving differential equations. 

In other words, DDY(I, J) =fifyj. In case the Jacobian is calculated numerically by NLEODE, an empty subroutine FCNJ should be compiled as follows  

The parameters yo i T02 Tos as well as k and 2 obtain constant values. The value of the parameter x (residence time) should be between 0 and 5. The subroutines FCN and FCNJ are listed below. 

The equations describe a consecutive-competitive reaction, A- -B R-l-E,R- -B S -h E, in a tube or a BR (Example 1). 

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In order to be able to utilize the NLEODE program code, the operator must, as a minimum, write the program code for the subroutine FCN, in which the functions for the right-hand side of Equations A3.1 and A3.2 are defined. If the Jacobian matrix of the right-hand side in Equations A3.1 and A3.2 is calculated analytically, an additional subroutine, FCNJ, must be written by the operator. In case the elements in the Jacobian matrix are... 

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