simple glpk interface

1 files changed, 24 insertions, 0 deletions

diff --git a/packages/glpk/examples/simplex3.hs b/packages/glpk/examples/simplex3.hs
new file mode 100644
index 0000000..0f787cb
--- /dev/null
+++ b/packages/glpk/examples/simplex3.hs
@@ -0,0 +1,24 @@
+import Numeric.LinearProgramming
+
+-- $ glpsol --cpxlp  /usr/share/doc/glpk-utils/examples/plan.lp  -o result.txt
+
+prob = Minimize [0.03, 0.08, 0.17, 0.12, 0.15, 0.21, 0.38]
+
+constr = Dense
+    [ [1,1,1,1,1,1,1]                           :==: 2000
+    , [0.15, 0.04, 0.02, 0.04, 0.2,0.01, 0.03]   :<:  60 
+    , [0.03, 0.05, 0.08, 0.02, 0.06, 0.01, 0]    :<:  100 
+    , [0.02, 0.04, 0.01, 0.02, 0.02, 0,    0]    :<:  40 
+    , [0.02, 0.03, 0,    0,    0.01, 0,    0]    :<:  30
+    , [0.7,  0.75, 0.8,  0.75, 0.8,  0.97,  0]   :>:  1500 
+    , [0.02, 0.06, 0.08, 0.12, 0.02, 0.01, 0.97] :&: (250,300) 
+    ]
+
+bounds = [ 1 :&: (0,200)
+         , 2 :&: (0,2500)
+         , 3 :&: (400,800)
+         , 4 :&: (100,700)
+         , 5 :&: (0,1500) ]
+
+main = print $ simplex prob constr bounds
+