1 files changed, 74 insertions, 0 deletions
diff --git a/src/matrixOperations/powm/spowma.c b/src/matrixOperations/powm/spowma.c
new file mode 100644
index 00000000..65bfb74f
--- /dev/null
+++ b/src/matrixOperations/powm/spowma.c
@@ -0,0 +1,74 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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-en.txt
+ *
+ */
+
+#include "matrixPow.h"
+#include "lapack.h"
+#include "eye.h"
+#include "matrixMultiplication.h"
+
+
+void spowma(float* in, int size, float expand, float* out){
+
+#ifndef WITHOUT_BLAS		
+	switch ((int)expand){
+		case 0 : 
+			seyea(out,size,size);
+			break;
+		case 1 : 
+			{
+				int i;
+				for (i=0;i<size*size;i++) out[i]=in[i];
+			}
+			break;
+		default : 
+			{
+				int i=0,j=0,k=0;
+				int One=1;
+				for (i=1; i<expand; i++){
+					for (j=0;j<size;j++) /*column*/ {
+						for (k=0;k<size;k++)/*row*/{
+							out[k+j*size]=ddot_(&size,in+k,&size,in+j*size,&One);
+						}
+					}
+				}
+			}
+			break;
+	}
+#else
+	switch ((int)expand){
+		case 0 : 
+			seyea(out,size,size);
+			break;
+		case 1 : 
+			{
+				int i;
+				for (i=0;i<size*size;i++) out[i]=in[i];
+			}
+			break;
+		default : 
+			{
+				int i=0,j=0;	
+				float* Pow;
+				Pow=malloc((uint)(size*size)*sizeof(float));
+				for (i=0;i<size*size;i++) out[i]=in[i];
+				for (i=1; i<expand; i++){
+					for (j=0;j<size*size;j++) Pow[j]=out[j];
+					smulma(Pow,size,size,in,size,size,out);
+				}
+			}
+			break;
+	}
+					
+
+#endif
+					
+}