Example: Function call: drawdown_dev_max_g(matrix_4).

 

matrix_4:

 

 

at point_1:

 

 

MATLAB code (.\Aorda\PSG\MATLAB\Examples\Func_value_drawdown_dev_max_g.m) for function calculation:

 

%Define data:

H1 = [2 -1 1;-3 6 -7;0 11 -3;-2 5 9];

c1 = [15;-1;40;7];

a = [1;1;1];

 

%=======================================================================

%Calculation of function with PSG Subroutine 'functionvalue'

%Calculate drawdown_dev_max_g function at point 'a':

val1 = functionvalue('drawdown_dev_max_g', [], H1, c1, [], a);

%Display function value:

disp(sprintf('functionvalue = %g', val1));

%=======================================================================

%Calculation of function with PSG Subroutine 'tbpsg_function_value'

%Create the PSG matrix 'matrix_1'(structure containing header and matrix body) and pack it to structure 'toolboxstruc_arr':

toolboxstruc_arr(1) = tbpsg_matrix_pack('matrix_1', H1, [],  c1, []);

%Create the PSG point 'point_1'(structure containing header and matrix body) and pack it to structure 'toolboxstruc_arr':

toolboxstruc_arr(2) = tbpsg_point_pack('point_1', a, []);

%Calculate drawdown_dev_max_g function at point 'point_1':

val2 = tbpsg_function_value('drawdown_dev_max_g(matrix_1)','point_1',toolboxstruc_arr);

%Display function value:

disp(sprintf('tbpsg_function_value = %g', val2));

%=======================================================================

%Creation of User Subroutine for calculating function value

%User subroutine is similar to the 'functionvalue'

%Create problem statement:

problem_statement = sprintf('%s\n',...

'calculate',...

'Point: point_1',...

'  drawdown_dev_max_g(matrix_1)',...

' ');

%Create Subroutine:

tbpsg_create_user_subroutine(problem_statement,toolboxstruc_arr,'.\','calculate_drawdown_dev_max_g');

%Uncomment section to call the user subroutine 'calculate_drawdown_dev_max_g':

%{

%Calculation of function with User Subroutine 'calculate_drawdown_dev_max_g':

[solution_str,outargstruc_arr] = calculate_drawdown_dev_max_g(H1,matrix_1_vars,c1,a,point_1_vars);

%Extract function value from the solution report:

val = tbpsg_function_data(solution_str, outargstruc_arr);

%}

 

Program output:

 

functionvalue = 5

tbpsg_function_value = 5