DWSIM Class Library Documentation
DWSIM
DWSIM Namespaces
DWSIM.MathOps Namespaces
DWSIM.MathOps
lpsolve55 Class
lpsolve55 Methods
add_column Method
add_columnex Method
add_constraint Method
add_constraintex Method
add_lag_con Method
add_SOS Method
column_in_lp Method
copy_lp Method
default_basis Method
del_column Method
del_constraint Method
delete_lp Method
dualize_lp Method
get_anti_degen Method
get_basis Method
get_basiscrash Method
get_bb_depthlimit Method
get_bb_floorfirst Method
get_bb_rule Method
get_bounds_tighter Method
get_break_at_value Method
get_col_name Method
get_column Method
get_columnex Method
get_constr_type Method
get_constr_value Method
get_constraints Method
get_dual_solution Method
get_epsb Method
get_epsd Method
get_epsel Method
get_epsint Method
get_epsperturb Method
get_epspivot Method
get_improve Method
get_infinite Method
get_lambda Method
get_lowbo Method
get_lp_index Method
get_lp_name Method
get_Lrows Method
get_mat Method
get_max_level Method
get_maxpivot Method
get_mip_gap Method
get_nameindex Method
get_Ncolumns Method
get_negrange Method
get_nonzeros Method
get_Norig_columns Method
get_Norig_rows Method
get_Nrows Method
get_obj_bound Method
get_objective Method
get_orig_index Method
get_origcol_name Method
get_origrow_name Method
get_pivoting Method
get_presolve Method
get_presolveloops Method
get_primal_solution Method
get_print_sol Method
get_PseudoCosts Method
get_rh Method
get_rh_range Method
get_row Method
get_row_name Method
get_rowex Method
get_scalelimit Method
get_scaling Method
get_sensitivity_obj Method
get_sensitivity_objex Method
get_sensitivity_rhs Method
get_simplextype Method
get_solutioncount Method
get_solutionlimit Method
get_status Method
get_statustext Method
get_timeout Method
get_total_iter Method
get_total_nodes Method
get_upbo Method
get_var_branch Method
get_var_dualresult Method
get_var_primalresult Method
get_var_priority Method
get_variables Method
get_verbose Method
get_working_objective Method
GetEnvironmentVariable Method
guess_basis Method
has_BFP Method
has_XLI Method
Init Method
is_add_rowmode Method
is_anti_degen Method
is_binary Method
is_break_at_first Method
is_constr_type Method
is_debug Method
is_feasible Method
is_infinite Method
is_int Method
is_integerscaling Method
is_lag_trace Method
is_maxim Method
is_nativeBFP Method
is_nativeXLI Method
is_negative Method
is_piv_mode Method
is_piv_rule Method
is_presolve Method
is_scalemode Method
is_scaletype Method
is_semicont Method
is_SOS_var Method
is_trace Method
is_unbounded Method
is_use_names Method
make_lp Method
print_constraints Method
print_debugdump Method
print_duals Method
print_lp Method
print_objective Method
print_scales Method
print_solution Method
print_str Method
print_tableau Method
put_abortfunc Method
put_logfunc Method
put_msgfunc Method
read_basis Method
read_freeMPS Method
read_LP Method
read_MPS Method
read_params Method
read_XLI Method
reset_basis Method
reset_params Method
resize_lp Method
set_add_rowmode Method
set_anti_degen Method
set_basis Method
set_basiscrash Method
set_basisvar Method
set_bb_depthlimit Method
set_bb_floorfirst Method
set_bb_rule Method
set_BFP Method
set_binary Method
set_bounds Method
set_bounds_tighter Method
set_break_at_first Method
set_break_at_value Method
set_col_name Method
set_column Method
set_columnex Method
set_constr_type Method
set_debug Method
set_epsb Method
set_epsd Method
set_epsel Method
set_epsint Method
set_epslevel Method
set_epsperturb Method
set_epspivot Method
set_improve Method
set_infinite Method
set_int Method
set_lag_trace Method
set_lowbo Method
set_lp_name Method
set_mat Method
set_maxim Method
set_maxpivot Method
set_minim Method
set_mip_gap Method
set_negrange Method
set_obj Method
set_obj_bound Method
set_obj_fn Method
set_obj_fnex Method
set_outputfile Method
set_pivoting Method
set_preferdual Method
set_presolve Method
set_print_sol Method
set_PseudoCosts Method
set_rh Method
set_rh_range Method
set_rh_vec Method
set_row Method
set_row_name Method
set_rowex Method
set_scalelimit Method
set_scaling Method
set_semicont Method
set_sense Method
set_simplextype Method
set_solutionlimit Method
set_timeout Method
set_trace Method
set_unbounded Method
set_upbo Method
set_use_names Method
set_var_branch Method
set_var_weights Method
set_verbose Method
set_XLI Method
SetEnvironmentVariable Method
solve Method
str_add_column Method
str_add_constraint Method
str_add_lag_con Method
str_set_obj_fn Method
str_set_rh_vec Method
time_elapsed Method
unscale Method
version Method
write_basis Method
write_freemps Method
write_lp Method
write_mps Method
write_params Method
write_XLI Method
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lpsolve55is_negative Method


Namespace: DWSIM.MathOps
Assembly: DWSIM.MathOps (in DWSIM.MathOps.dll) Version: 8.8.1.0
Syntax
Copy
[DllImportAttribute("lpsolve55", CharSet = CharSet.Ansi, ExactSpelling = true, 
	SetLastError = true)]
public static bool is_negative(
	IntPtr lp,
	int column
)
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Parameters

lp  IntPtr
 
column  Int32
 

Return Value

Boolean
See Also