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"
+	#output += post_data
+	output += "
"
+
+	post_data = urlparse.parse_qsl(post_data, True, True)
+
+        data_string = str(post_data[0][1])
+        data_rows = data_string.splitlines()
+        for index, row in enumerate(data_rows):
+            data_rows[index] = row.split()
+
+	given_matrix = data_rows
+        null_space = null(given_matrix)
+        try:
+            null_space = null_space / null_space.max()
+        except:
+            pass
+
+#        la, v = scipy.linalg.eig(given_matrix)
+#	output += "eigenvalues:
"
+#        for l in la:
+#            output += str(l)
+        determinant = scipy.linalg.det(given_matrix)
+
+	output += ""
+	output += "nullspace:
"
+	output += str(null_space)
+	output += "

"
+	output += "eigenvalues:
"
+	output += str(eigenvalues(given_matrix))
+	output += "

"
+	output += "determinant:
"
+	output += str(determinant)
+#	output += "

"
+#	output += "eigenvalues:
"
+#	output += str(l1)
+#	output += "

"
+#	output += "eigenvectors:
"
+#	output +=  str(v[:,0][0])
+	output += ""
+
+    # send results
+    output_len = sum(len(line) for line in output)
+    start_response('200 OK', [('Content-type', 'text/html'),
+                              ('Content-Length', str(output_len))])
+    return output
diff --git a/validate.js b/validate.js
new file mode 100644
index 0000000..6f8dd5f
--- /dev/null
+++ b/validate.js
@@ -0,0 +1,8 @@
+$(document).ready(function(){
+  $('#submit').click(function(event){
+    if ( $('#matrix').val() == ''
+       ){
+         event.preventDefault();
+    }
+  });
+});
-- 
2.30.2