CMSCOPE changed

1 files changed, 24 insertions, 0 deletions

diff --git a/modules/cacsd/macros/lyap.sci b/modules/cacsd/macros/lyap.sci
new file mode 100755
index 000000000..c1a2d7a20
--- /dev/null
+++ b/modules/cacsd/macros/lyap.sci
@@ -0,0 +1,24 @@
+// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+// Copyright (C) INRIA -
+//
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution.  The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
+
+function X = lyap(A,C,flag)
+    //  solve  A'*X+X*A=C if flag=='c' or  A'*X*A-X=C if flag=='d'
+    if argn(2)<>3 then
+        error(msprintf(gettext("%s: Wrong number of input argument(s): %d expected.\n"),"lyap",3))
+    end
+    flag=part(flag,1)
+    if flag=="c" then
+        flag=[0 0],
+    elseif flag=="d" then
+        flag=[1 0],
+    else
+        error(msprintf(gettext("%s: Wrong value for input argument #%d: ""c"" or ""d"" expected.\n"), "lyap", 3));
+    end
+    X=linmeq(2,A,C,flag)
+endfunction