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Diffstat (limited to 'src/c/linearAlgebra/schur/dgschura.c')
-rw-r--r--src/c/linearAlgebra/schur/dgschura.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/src/c/linearAlgebra/schur/dgschura.c b/src/c/linearAlgebra/schur/dgschura.c
index 56d4845..f17da8c 100644
--- a/src/c/linearAlgebra/schur/dgschura.c
+++ b/src/c/linearAlgebra/schur/dgschura.c
@@ -15,14 +15,15 @@
#include "lapack.h"
#include "stdlib.h"
#include "string.h"
-
+#include <math.h>
/*flag --> 0: nothing
--> 1: continuous
--> 2: discrete
*/
-lapack_logical selctg2( double* in1, double* in2, double* in3);
+lapack_logical selctg21( double* in1, double* in2, double* in3);
+lapack_logical selctg22( double* in1, double* in2, double* in3);
double dgschura(double* in1, int size, double* in2, int flag, int nout, \
double* out1, double* out2, double* out3, double* out4)
@@ -40,7 +41,7 @@ double dgschura(double* in1, int size, double* in2, int flag, int nout, \
modifies the input variable*/
/*Used incase of flag > 0*/
- LAPACK_D_SELECT3 selctg = &selctg2;
+ LAPACK_D_SELECT3 selctg = &selctg21;
if(nout >= 2){
JOBVSL = 'V';
@@ -143,7 +144,15 @@ double dgschura(double* in1, int size, double* in2, int flag, int nout, \
return ret;
}
-lapack_logical selctg2(double* in1, double* in2, double* in3)
+lapack_logical selctg21(double* in1, double* in2, double* in3)
+{
+ if((sqrt(*in1**in1+*in2**in2)/ *in3) < 1)
+ return 1;
+ else
+ return 0;
+}
+
+lapack_logical selctg22(double* in1, double* in2, double* in3)
{
if((sqrt(*in1**in1+*in2**in2)/ *in3) < 1)
return 1;