[Rd] simplex (PR#2322)

[george@lecompte.org]

Full_Name: George LeCompte
Version: 1.6.1 (windows)
OS: windows98
Submission from: (NULL) (208.8.162.135)


simplex won't work with only >= constraints examples follow:

this works:
simplex(a=1,A1=1,b1=10,A2=1,b2=1)

but this doesn't
simplex(1,A2=1,b2=1)

Linear Programming Results

Call : simplex(a = 1, A2 = 1, b2 = 1)

Minimization Problem with Objective Function Coefficients
x1 
 1 

No feasible solution could be found