This file is indexed.

/usr/include/root/Math/CramerInversionSym.icc is in libroot-math-smatrix-dev 5.34.19+dfsg-1.2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
// @(#)root/smatrix:$Id$
// Authors: L. Moneta    2005  


/**********************************************************************
 *                                                                    *
 * Copyright (c) 2005 , LCG ROOT MathLib Team                         *
 *                                                                    *
 *                                                                    *
 **********************************************************************/
//
// Cramer optmized inversion for symmetric matrices up to size 5x5. 
// Code from ROOT TMatrixDCramerInv which originates from CLHEP 
// (original author Mark Fischler)
//
// Modified by L. Moneta 22/03/07: specialize only until 5x5 (before was up to 6x6) 
//  tests show that on 64 machines (like on slc4) it is faster the general method
//

#ifndef ROOT_Math_CramerInversionSym_icc
#define ROOT_Math_CramerInversionSym_icc

#include <cmath>


namespace ROOT { 

  namespace Math { 




//==============================================================================
/**
   Inversion for a 3x3 symmetric matrix
 */
template <class T> 
bool FastInverter<3>::Dinv(MatRepSym<T,3> & rhs) { 

  typedef T  Scalar; 

  // check matrix sizes ??


  const Scalar c00 = rhs[4] * rhs[8] - rhs[5] * rhs[5];
  const Scalar c01 = rhs[5] * rhs[2] - rhs[1] * rhs[8];
  const Scalar c02 = rhs[1] * rhs[5] - rhs[4] * rhs[2];
  const Scalar c11 = rhs[8] * rhs[0] - rhs[2] * rhs[2];
  const Scalar c12 = rhs[2] * rhs[1] - rhs[5] * rhs[0];
  const Scalar c22 = rhs[0] * rhs[4] - rhs[1] * rhs[1];

  const Scalar t0  = std::abs(rhs[0]);
  const Scalar t1  = std::abs(rhs[1]);
  const Scalar t2  = std::abs(rhs[2]);

  Scalar det;
  Scalar tmp;

  if (t0 >= t1) {
    if (t2 >= t0) {
      tmp = rhs[2];
      det = c12*c01-c11*c02;
    } else {
      tmp = rhs[0];
      det = c11*c22-c12*c12;
    }
  } else if (t2 >= t1) {
    tmp = rhs[2];
    det = c12*c01-c11*c02;
  } else {
    tmp = rhs[1];
    det = c02*c12-c01*c22;
  }

  if ( det == 0 || tmp == 0)
    return false;

  Scalar s = tmp/det;
//   if (determ)
//     *determ = 1./s;

  rhs[0] = s*c00;
  rhs[1] = s*c01;
  rhs[2] = s*c02;
  rhs[4] = s*c11;
  rhs[5] = s*c12;
  rhs[8] = s*c22;
  
  return true;
}


//==============================================================================
// Inversion for 4x4 matrices
//==============================================================================

// SFij are indices for a 4x4 symmetric matrix.

#define SF00 0
#define SF01 1
#define SF02 2
#define SF03 3

#define SF10 1
#define SF11 5
#define SF12 6
#define SF13 7

#define SF20 2
#define SF21 6
#define SF22 10
#define SF23 11

#define SF30 3
#define SF31 7
#define SF32 11
#define SF33 15


/**
   Inversion for a 4x4 symmetric matrix
 */
template <class T> 
bool FastInverter<4>::Dinv(MatRepSym<T,4> & rhs) { 

  typedef T  Scalar; 


  // Find all NECESSARY 2x2 dets:  (14 of them)

  const Scalar mDet2_12_01 = rhs[SF10]*rhs[SF21] - rhs[SF11]*rhs[SF20];
  const Scalar mDet2_12_02 = rhs[SF10]*rhs[SF22] - rhs[SF12]*rhs[SF20];
  const Scalar mDet2_12_12 = rhs[SF11]*rhs[SF22] - rhs[SF12]*rhs[SF21];
  const Scalar mDet2_13_01 = rhs[SF10]*rhs[SF31] - rhs[SF11]*rhs[SF30];
  const Scalar mDet2_13_02 = rhs[SF10]*rhs[SF32] - rhs[SF12]*rhs[SF30];
  const Scalar mDet2_13_03 = rhs[SF10]*rhs[SF33] - rhs[SF13]*rhs[SF30];
  const Scalar mDet2_13_12 = rhs[SF11]*rhs[SF32] - rhs[SF12]*rhs[SF31];
  const Scalar mDet2_13_13 = rhs[SF11]*rhs[SF33] - rhs[SF13]*rhs[SF31];
  const Scalar mDet2_23_01 = rhs[SF20]*rhs[SF31] - rhs[SF21]*rhs[SF30];
  const Scalar mDet2_23_02 = rhs[SF20]*rhs[SF32] - rhs[SF22]*rhs[SF30];
  const Scalar mDet2_23_03 = rhs[SF20]*rhs[SF33] - rhs[SF23]*rhs[SF30];
  const Scalar mDet2_23_12 = rhs[SF21]*rhs[SF32] - rhs[SF22]*rhs[SF31];
  const Scalar mDet2_23_13 = rhs[SF21]*rhs[SF33] - rhs[SF23]*rhs[SF31];
  const Scalar mDet2_23_23 = rhs[SF22]*rhs[SF33] - rhs[SF23]*rhs[SF32];

  // SFind all NECESSSFRY 3x3 dets:   (10 of them)
  
  const Scalar mDet3_012_012 = rhs[SF00]*mDet2_12_12 - rhs[SF01]*mDet2_12_02
                               + rhs[SF02]*mDet2_12_01;
  const Scalar mDet3_013_012 = rhs[SF00]*mDet2_13_12 - rhs[SF01]*mDet2_13_02
                               + rhs[SF02]*mDet2_13_01;
  const Scalar mDet3_013_013 = rhs[SF00]*mDet2_13_13 - rhs[SF01]*mDet2_13_03
                               + rhs[SF03]*mDet2_13_01;
  const Scalar mDet3_023_012 = rhs[SF00]*mDet2_23_12 - rhs[SF01]*mDet2_23_02
                               + rhs[SF02]*mDet2_23_01;
  const Scalar mDet3_023_013 = rhs[SF00]*mDet2_23_13 - rhs[SF01]*mDet2_23_03
                               + rhs[SF03]*mDet2_23_01;
  const Scalar mDet3_023_023 = rhs[SF00]*mDet2_23_23 - rhs[SF02]*mDet2_23_03
                               + rhs[SF03]*mDet2_23_02;
  const Scalar mDet3_123_012 = rhs[SF10]*mDet2_23_12 - rhs[SF11]*mDet2_23_02
                               + rhs[SF12]*mDet2_23_01;
  const Scalar mDet3_123_013 = rhs[SF10]*mDet2_23_13 - rhs[SF11]*mDet2_23_03
                               + rhs[SF13]*mDet2_23_01;
  const Scalar mDet3_123_023 = rhs[SF10]*mDet2_23_23 - rhs[SF12]*mDet2_23_03
                               + rhs[SF13]*mDet2_23_02;
  const Scalar mDet3_123_123 = rhs[SF11]*mDet2_23_23 - rhs[SF12]*mDet2_23_13
                               + rhs[SF13]*mDet2_23_12;

  // Find the 4x4 det:

  const Scalar det = rhs[SF00]*mDet3_123_123 - rhs[SF01]*mDet3_123_023
                       + rhs[SF02]*mDet3_123_013 - rhs[SF03]*mDet3_123_012;

//   if (determ)
//     *determ = det;

  if ( det == 0 )
    return false;

  const Scalar oneOverDet = 1.0f / det;
  const Scalar mn1OverDet = - oneOverDet;

  rhs[SF00] =  mDet3_123_123 * oneOverDet;
  rhs[SF01] =  mDet3_123_023 * mn1OverDet;
  rhs[SF02] =  mDet3_123_013 * oneOverDet;
  rhs[SF03] =  mDet3_123_012 * mn1OverDet;

  rhs[SF11] =  mDet3_023_023 * oneOverDet;
  rhs[SF12] =  mDet3_023_013 * mn1OverDet;
  rhs[SF13] =  mDet3_023_012 * oneOverDet;

  rhs[SF22] =  mDet3_013_013 * oneOverDet;
  rhs[SF23] =  mDet3_013_012 * mn1OverDet;

  rhs[SF33] =  mDet3_012_012 * oneOverDet;

  return true;
}


//==============================================================================
// Inversion for 5x5 matrices
//==============================================================================

// Mij are indices for a 5x5 matrix.
    
#define SM00 0
#define SM01 1
#define SM02 2
#define SM03 3
#define SM04 4
  
#define SM10 1
#define SM11 6
#define SM12 7
#define SM13 8
#define SM14 9

#define SM20 2
#define SM21 7
#define SM22 12
#define SM23 13
#define SM24 14

#define SM30 3
#define SM31 8
#define SM32 13
#define SM33 18
#define SM34 19

#define SM40 4
#define SM41 9
#define SM42 14
#define SM43 19
#define SM44 24

/**
   Inversion for a 5x5 symmetric matrix
 */
template <class T> 
bool FastInverter<5>::Dinv(MatRepSym<T,5> & rhs) { 

  typedef T  Scalar; 

  // Find all NECESSARY 2x2 dets:  (25 of them)

  const Scalar mDet2_23_01 = rhs[SM20]*rhs[SM31] - rhs[SM21]*rhs[SM30];
  const Scalar mDet2_23_02 = rhs[SM20]*rhs[SM32] - rhs[SM22]*rhs[SM30];
  const Scalar mDet2_23_03 = rhs[SM20]*rhs[SM33] - rhs[SM23]*rhs[SM30];
  const Scalar mDet2_23_12 = rhs[SM21]*rhs[SM32] - rhs[SM22]*rhs[SM31];
  const Scalar mDet2_23_13 = rhs[SM21]*rhs[SM33] - rhs[SM23]*rhs[SM31];
  const Scalar mDet2_23_23 = rhs[SM22]*rhs[SM33] - rhs[SM23]*rhs[SM32];
  const Scalar mDet2_24_01 = rhs[SM20]*rhs[SM41] - rhs[SM21]*rhs[SM40];
  const Scalar mDet2_24_02 = rhs[SM20]*rhs[SM42] - rhs[SM22]*rhs[SM40];
  const Scalar mDet2_24_03 = rhs[SM20]*rhs[SM43] - rhs[SM23]*rhs[SM40];
  const Scalar mDet2_24_04 = rhs[SM20]*rhs[SM44] - rhs[SM24]*rhs[SM40];
  const Scalar mDet2_24_12 = rhs[SM21]*rhs[SM42] - rhs[SM22]*rhs[SM41];
  const Scalar mDet2_24_13 = rhs[SM21]*rhs[SM43] - rhs[SM23]*rhs[SM41];
  const Scalar mDet2_24_14 = rhs[SM21]*rhs[SM44] - rhs[SM24]*rhs[SM41];
  const Scalar mDet2_24_23 = rhs[SM22]*rhs[SM43] - rhs[SM23]*rhs[SM42];
  const Scalar mDet2_24_24 = rhs[SM22]*rhs[SM44] - rhs[SM24]*rhs[SM42];
  const Scalar mDet2_34_01 = rhs[SM30]*rhs[SM41] - rhs[SM31]*rhs[SM40];
  const Scalar mDet2_34_02 = rhs[SM30]*rhs[SM42] - rhs[SM32]*rhs[SM40];
  const Scalar mDet2_34_03 = rhs[SM30]*rhs[SM43] - rhs[SM33]*rhs[SM40];
  const Scalar mDet2_34_04 = rhs[SM30]*rhs[SM44] - rhs[SM34]*rhs[SM40];
  const Scalar mDet2_34_12 = rhs[SM31]*rhs[SM42] - rhs[SM32]*rhs[SM41];
  const Scalar mDet2_34_13 = rhs[SM31]*rhs[SM43] - rhs[SM33]*rhs[SM41];
  const Scalar mDet2_34_14 = rhs[SM31]*rhs[SM44] - rhs[SM34]*rhs[SM41];
  const Scalar mDet2_34_23 = rhs[SM32]*rhs[SM43] - rhs[SM33]*rhs[SM42];
  const Scalar mDet2_34_24 = rhs[SM32]*rhs[SM44] - rhs[SM34]*rhs[SM42];
  const Scalar mDet2_34_34 = rhs[SM33]*rhs[SM44] - rhs[SM34]*rhs[SM43];

  // Find all NECESSARY 3x3 dets:   (30 of them)

  const Scalar mDet3_123_012 = rhs[SM10]*mDet2_23_12 - rhs[SM11]*mDet2_23_02 + rhs[SM12]*mDet2_23_01;
  const Scalar mDet3_123_013 = rhs[SM10]*mDet2_23_13 - rhs[SM11]*mDet2_23_03 + rhs[SM13]*mDet2_23_01;
  const Scalar mDet3_123_023 = rhs[SM10]*mDet2_23_23 - rhs[SM12]*mDet2_23_03 + rhs[SM13]*mDet2_23_02;
  const Scalar mDet3_123_123 = rhs[SM11]*mDet2_23_23 - rhs[SM12]*mDet2_23_13 + rhs[SM13]*mDet2_23_12;
  const Scalar mDet3_124_012 = rhs[SM10]*mDet2_24_12 - rhs[SM11]*mDet2_24_02 + rhs[SM12]*mDet2_24_01;
  const Scalar mDet3_124_013 = rhs[SM10]*mDet2_24_13 - rhs[SM11]*mDet2_24_03 + rhs[SM13]*mDet2_24_01;
  const Scalar mDet3_124_014 = rhs[SM10]*mDet2_24_14 - rhs[SM11]*mDet2_24_04 + rhs[SM14]*mDet2_24_01;
  const Scalar mDet3_124_023 = rhs[SM10]*mDet2_24_23 - rhs[SM12]*mDet2_24_03 + rhs[SM13]*mDet2_24_02;
  const Scalar mDet3_124_024 = rhs[SM10]*mDet2_24_24 - rhs[SM12]*mDet2_24_04 + rhs[SM14]*mDet2_24_02;
  const Scalar mDet3_124_123 = rhs[SM11]*mDet2_24_23 - rhs[SM12]*mDet2_24_13 + rhs[SM13]*mDet2_24_12;
  const Scalar mDet3_124_124 = rhs[SM11]*mDet2_24_24 - rhs[SM12]*mDet2_24_14 + rhs[SM14]*mDet2_24_12;
  const Scalar mDet3_134_012 = rhs[SM10]*mDet2_34_12 - rhs[SM11]*mDet2_34_02 + rhs[SM12]*mDet2_34_01;
  const Scalar mDet3_134_013 = rhs[SM10]*mDet2_34_13 - rhs[SM11]*mDet2_34_03 + rhs[SM13]*mDet2_34_01;
  const Scalar mDet3_134_014 = rhs[SM10]*mDet2_34_14 - rhs[SM11]*mDet2_34_04 + rhs[SM14]*mDet2_34_01;
  const Scalar mDet3_134_023 = rhs[SM10]*mDet2_34_23 - rhs[SM12]*mDet2_34_03 + rhs[SM13]*mDet2_34_02;
  const Scalar mDet3_134_024 = rhs[SM10]*mDet2_34_24 - rhs[SM12]*mDet2_34_04 + rhs[SM14]*mDet2_34_02;
  const Scalar mDet3_134_034 = rhs[SM10]*mDet2_34_34 - rhs[SM13]*mDet2_34_04 + rhs[SM14]*mDet2_34_03;
  const Scalar mDet3_134_123 = rhs[SM11]*mDet2_34_23 - rhs[SM12]*mDet2_34_13 + rhs[SM13]*mDet2_34_12;
  const Scalar mDet3_134_124 = rhs[SM11]*mDet2_34_24 - rhs[SM12]*mDet2_34_14 + rhs[SM14]*mDet2_34_12;
  const Scalar mDet3_134_134 = rhs[SM11]*mDet2_34_34 - rhs[SM13]*mDet2_34_14 + rhs[SM14]*mDet2_34_13;
  const Scalar mDet3_234_012 = rhs[SM20]*mDet2_34_12 - rhs[SM21]*mDet2_34_02 + rhs[SM22]*mDet2_34_01;
  const Scalar mDet3_234_013 = rhs[SM20]*mDet2_34_13 - rhs[SM21]*mDet2_34_03 + rhs[SM23]*mDet2_34_01;
  const Scalar mDet3_234_014 = rhs[SM20]*mDet2_34_14 - rhs[SM21]*mDet2_34_04 + rhs[SM24]*mDet2_34_01;
  const Scalar mDet3_234_023 = rhs[SM20]*mDet2_34_23 - rhs[SM22]*mDet2_34_03 + rhs[SM23]*mDet2_34_02;
  const Scalar mDet3_234_024 = rhs[SM20]*mDet2_34_24 - rhs[SM22]*mDet2_34_04 + rhs[SM24]*mDet2_34_02;
  const Scalar mDet3_234_034 = rhs[SM20]*mDet2_34_34 - rhs[SM23]*mDet2_34_04 + rhs[SM24]*mDet2_34_03;
  const Scalar mDet3_234_123 = rhs[SM21]*mDet2_34_23 - rhs[SM22]*mDet2_34_13 + rhs[SM23]*mDet2_34_12;
  const Scalar mDet3_234_124 = rhs[SM21]*mDet2_34_24 - rhs[SM22]*mDet2_34_14 + rhs[SM24]*mDet2_34_12;
  const Scalar mDet3_234_134 = rhs[SM21]*mDet2_34_34 - rhs[SM23]*mDet2_34_14 + rhs[SM24]*mDet2_34_13;
  const Scalar mDet3_234_234 = rhs[SM22]*mDet2_34_34 - rhs[SM23]*mDet2_34_24 + rhs[SM24]*mDet2_34_23;

  // Find all NECESSARY 4x4 dets:   (15 of them)

  const Scalar mDet4_0123_0123 = rhs[SM00]*mDet3_123_123 - rhs[SM01]*mDet3_123_023
                                 + rhs[SM02]*mDet3_123_013 - rhs[SM03]*mDet3_123_012;
  const Scalar mDet4_0124_0123 = rhs[SM00]*mDet3_124_123 - rhs[SM01]*mDet3_124_023
                                 + rhs[SM02]*mDet3_124_013 - rhs[SM03]*mDet3_124_012;
  const Scalar mDet4_0124_0124 = rhs[SM00]*mDet3_124_124 - rhs[SM01]*mDet3_124_024
                                 + rhs[SM02]*mDet3_124_014 - rhs[SM04]*mDet3_124_012;
  const Scalar mDet4_0134_0123 = rhs[SM00]*mDet3_134_123 - rhs[SM01]*mDet3_134_023
                                 + rhs[SM02]*mDet3_134_013 - rhs[SM03]*mDet3_134_012;
  const Scalar mDet4_0134_0124 = rhs[SM00]*mDet3_134_124 - rhs[SM01]*mDet3_134_024
                                 + rhs[SM02]*mDet3_134_014 - rhs[SM04]*mDet3_134_012;
  const Scalar mDet4_0134_0134 = rhs[SM00]*mDet3_134_134 - rhs[SM01]*mDet3_134_034
                                 + rhs[SM03]*mDet3_134_014 - rhs[SM04]*mDet3_134_013;
  const Scalar mDet4_0234_0123 = rhs[SM00]*mDet3_234_123 - rhs[SM01]*mDet3_234_023
                                 + rhs[SM02]*mDet3_234_013 - rhs[SM03]*mDet3_234_012;
  const Scalar mDet4_0234_0124 = rhs[SM00]*mDet3_234_124 - rhs[SM01]*mDet3_234_024
                                 + rhs[SM02]*mDet3_234_014 - rhs[SM04]*mDet3_234_012;
  const Scalar mDet4_0234_0134 = rhs[SM00]*mDet3_234_134 - rhs[SM01]*mDet3_234_034
                                 + rhs[SM03]*mDet3_234_014 - rhs[SM04]*mDet3_234_013;
  const Scalar mDet4_0234_0234 = rhs[SM00]*mDet3_234_234 - rhs[SM02]*mDet3_234_034
                                 + rhs[SM03]*mDet3_234_024 - rhs[SM04]*mDet3_234_023;
  const Scalar mDet4_1234_0123 = rhs[SM10]*mDet3_234_123 - rhs[SM11]*mDet3_234_023
                                 + rhs[SM12]*mDet3_234_013 - rhs[SM13]*mDet3_234_012;
  const Scalar mDet4_1234_0124 = rhs[SM10]*mDet3_234_124 - rhs[SM11]*mDet3_234_024
                                 + rhs[SM12]*mDet3_234_014 - rhs[SM14]*mDet3_234_012;
  const Scalar mDet4_1234_0134 = rhs[SM10]*mDet3_234_134 - rhs[SM11]*mDet3_234_034
                                 + rhs[SM13]*mDet3_234_014 - rhs[SM14]*mDet3_234_013;
  const Scalar mDet4_1234_0234 = rhs[SM10]*mDet3_234_234 - rhs[SM12]*mDet3_234_034
                                 + rhs[SM13]*mDet3_234_024 - rhs[SM14]*mDet3_234_023;
  const Scalar mDet4_1234_1234 = rhs[SM11]*mDet3_234_234 - rhs[SM12]*mDet3_234_134
                                 + rhs[SM13]*mDet3_234_124 - rhs[SM14]*mDet3_234_123;

  // Find the 5x5 det:

  const Scalar det = rhs[SM00]*mDet4_1234_1234 - rhs[SM01]*mDet4_1234_0234 + rhs[SM02]*mDet4_1234_0134
                       - rhs[SM03]*mDet4_1234_0124 + rhs[SM04]*mDet4_1234_0123;
//   if (determ)
//     *determ = det;

  if ( det == 0 )
    return false;

  const Scalar oneOverDet = 1.0f / det;
  const Scalar mn1OverDet = - oneOverDet;

  rhs[SM00] = mDet4_1234_1234 * oneOverDet;
  rhs[SM01] = mDet4_1234_0234 * mn1OverDet;
  rhs[SM02] = mDet4_1234_0134 * oneOverDet;
  rhs[SM03] = mDet4_1234_0124 * mn1OverDet;
  rhs[SM04] = mDet4_1234_0123 * oneOverDet;

  rhs[SM11] = mDet4_0234_0234 * oneOverDet;
  rhs[SM12] = mDet4_0234_0134 * mn1OverDet;
  rhs[SM13] = mDet4_0234_0124 * oneOverDet;
  rhs[SM14] = mDet4_0234_0123 * mn1OverDet;

  rhs[SM22] = mDet4_0134_0134 * oneOverDet;
  rhs[SM23] = mDet4_0134_0124 * mn1OverDet;
  rhs[SM24] = mDet4_0134_0123 * oneOverDet;

  rhs[SM33] = mDet4_0124_0124 * oneOverDet;
  rhs[SM34] = mDet4_0124_0123 * mn1OverDet;

  rhs[SM44] = mDet4_0123_0123 * oneOverDet;


  return true;
}



  }  // namespace Math

}  // namespace ROOT
          

// undef Smacros to avoid conflicts

// undef SF 4x4
#undef SF00 
#undef SF01 
#undef SF02
#undef SF03

#undef SF10
#undef SF11
#undef SF12
#undef SF13

#undef SF20
#undef SF21
#undef SF22
#undef SF23

#undef SF30
#undef SF31
#undef SF32
#undef SF33

// undef SM 5x5
#undef SM00
#undef SM01
#undef SM02
#undef SM03
#undef SM04

#undef SM10
#undef SM11
#undef SM12
#undef SM13
#undef SM14

#undef SM20
#undef SM21
#undef SM22
#undef SM23
#undef SM24

#undef SM30
#undef SM31
#undef SM32
#undef SM33
#undef SM34

#undef SM40
#undef SM41
#undef SM42
#undef SM43
#undef SM44




#endif