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authorBrijeshcr2017-07-06 15:48:47 +0530
committerGitHub2017-07-06 15:48:47 +0530
commitea958d3c401761dcc24865d9639b2fab31038db8 (patch)
tree8cea93113a46d7015d1a10638778f92275a0ca94 /src/c/linearAlgebra/projspec/dprojspeca.c
parentcb1d99232e521c34e9f0c271a6c4176cc7b9cbe4 (diff)
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Revert "LinearAlgebra Function Added"
Diffstat (limited to 'src/c/linearAlgebra/projspec/dprojspeca.c')
-rw-r--r--src/c/linearAlgebra/projspec/dprojspeca.c67
1 files changed, 0 insertions, 67 deletions
diff --git a/src/c/linearAlgebra/projspec/dprojspeca.c b/src/c/linearAlgebra/projspec/dprojspeca.c
deleted file mode 100644
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--- a/src/c/linearAlgebra/projspec/dprojspeca.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/* Copyright (C) 2017 - IIT Bombay - FOSSEE
-
- 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
- Author: Sandeep Gupta
- Organization: FOSSEE, IIT Bombay
- Email: toolbox@scilab.in
- */
-
-/* PROJSPEC function in scilab */
-
-/*
- //[S,P,D,index]=projspec(A)
- //Spectral characteristics of A at 0
- //S = reduced resolvent at 0 (S=-Drazin_inverse(A))
- //P = spectral projection at 0
- //D = Nilpotent operator at 0
- //index = index of the 0 eigenvalue
- //!
-
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include "norm.h"
-#include "eye.h"
-
-#define eps pow(2,-52)
-
-double dprojspeca(double *inp1,int row,int col,double *out1,double *out2,double *out3){
- double tol = pow(10,-6);
- int i,j,index;
- /*norm(A,1)*/
- double nor;
- nor = dnorma(inp1,row,col,1);
-
- /* P=eye(A),D=A,S=0*P;index=1; */
- if(nor < eps*row*row){
- memcpy(out2,inp1,row*col*sizeof(double));
- deyea(out2,row,col);
- memcpy(out3,inp1,row*col*sizeof(double));
- for(i=0;i<row;i++){
- for(j=0;j<row;j++){
- out1[i*row+j] = 0;
- }
- }
- index = 1;
- }
-
- /* rcond(A) */
- double *rcon;
- rcon = rcond(inp1,row);
- if(rcon > tol){
- dinverma(inp1,out1,row);
- for(i=0;i<row*col;i++){
- out2[i]=0;
- out3[i]=0;
- }
- index = 0;
- return index;
- }
- index = 1;
-}