diff --git a/bin/correspondence_matrix b/bin/correspondence_matrix
index 171fe38..1e9aaa6 100755
Binary files a/bin/correspondence_matrix and b/bin/correspondence_matrix differ
diff --git a/correspondence_matrix.f90 b/correspondence_matrix.f90
index 5f943b6..1eb8337 100644
--- a/correspondence_matrix.f90
+++ b/correspondence_matrix.f90
@@ -1,16 +1,76 @@
+module math
+
+implicit none
+
+contains
+
+function math_axisAngleToR(axis,omega) result(math_axisAngleToR1)
+
+  implicit none
+  
+  real, dimension(3), intent(in) :: axis
+  real, intent(in) :: omega
+  real, dimension(3) :: n
+  real :: norm,s,c,c1
+  
+  real, dimension(3,3), parameter :: &
+  I3 = real(reshape([&
+    1, 0, 0, &
+    0, 1, 0, &
+    0, 0, 1  &
+    ],shape(I3)))                                                                      !< 3x3 Identity
+
+  real, dimension(3,3) :: math_axisAngleToR1
+  
+  norm = norm2(axis)
+  wellDefined: if (norm > 1.0e-8) then
+    n = axis/norm                                                                                    ! normalize axis to be sure
+  
+    s = sin(omega)
+    c = cos(omega)
+    c1 = 1.0 - c
+  
+    math_axisAngleToR1(1,1) =  c + c1*n(1)**2.0
+    math_axisAngleToR1(1,2) =  c1*n(1)*n(2) - s*n(3)
+    math_axisAngleToR1(1,3) =  c1*n(1)*n(3) + s*n(2)
+                              
+    math_axisAngleToR1(2,1) =  c1*n(1)*n(2) + s*n(3)
+    math_axisAngleToR1(2,2) =  c + c1*n(2)**2.0
+    math_axisAngleToR1(2,3) =  c1*n(2)*n(3) - s*n(1)
+                              
+    math_axisAngleToR1(3,1) =  c1*n(1)*n(3) - s*n(2)
+    math_axisAngleToR1(3,2) =  c1*n(2)*n(3) + s*n(1)
+    math_axisAngleToR1(3,3) =  c + c1*n(3)**2.0
+  else wellDefined
+    math_axisAngleToR1 = I3
+  endif wellDefined
+  
+end function
+
+end module math
+
+
 program corresponcence_matrix
-    implicit none
+  use math
+  implicit none
+
     integer, dimension(4) :: &
-        active = [6,0,6,0], &
-        potential = [6,6,6,6]
+        active = [6,6,6,6], &                 !< number of active twin systems
+        potential = [6,6,6,6]                 !< all the potential twin systems
 
     real, dimension(3) :: &
         direction, normal
 
-    real, dimension(3,12) :: normal_vector
+    real, dimension(3,24) :: normal_vector, direction_vector
+
+    real, dimension(3,3,24) :: SchmidMatrix, corresponcenceMatrix
+
+    real, dimension(24) :: characteristicShear
 
     real :: cOverA = 1.6235
 
+    real :: pi = 3.14159274 
+
     real, dimension(8,24) :: &
     system = reshape(real([&
     ! <-10.1>{10.2} systems, shear = (3-(c/a)^2)/(sqrt(3) c/a)
@@ -47,11 +107,21 @@ program corresponcence_matrix
        2, -1, -1, -3,     2, -1, -1,  2  &
       ]),shape(system))
 
+    real, dimension(3,3), parameter :: &
+    I3 = real(reshape([&
+      1, 0, 0, &
+      0, 1, 0, &
+      0, 0, 1  &
+      ],shape(I3)))                                                                      !< 3x3 Identity
+
     integer :: &
     a, &                                                                        !< index of active system
     p, &                                                                        !< index in potential system matrix
     f, &                                                                        !< index of my family
-    s                                                                           !< index of my system in current family
+    s, f1, s1, e1, i, j, k                                                                      !< index of my system in current family
+
+
+    
     
     a = 0
     do f = 1, size(active,1)                                                    !< Loops 1 to 4 for hP
@@ -70,12 +140,51 @@ program corresponcence_matrix
             
 
             
-            normal_vector(1:3,a) = normal   /norm2(normal)
-            write(6,*)'normal vector', normal_vector
+            normal_vector(1:3,a) = normal /norm2(normal)
+            direction_vector(1:3,a) = direction / norm2(direction)
+            
         end do
     end do
 
-    do f = 1,size(active,1)
+    do f1 = 1,size(active,1)
+      s1 = sum(active(:f1-1)) + 1
+      e1 = sum(active(:f1))
+      select case(f1)
+      case (1)
+        characteristicShear(s1:e1) = (3.0-cOverA**2)/sqrt(3.0)/cOverA
+      case (2)
+        characteristicShear(s1:e1) = 1.0/cOverA
+      case (3)
+        characteristicShear(s1:e1) = (4.0*cOverA**2-9.0)/sqrt(48.0)/cOverA
+      case (4)
+        characteristicShear(s1:e1) = 2.0*(cOverA**2-2.0)/3.0/cOverA
+      end select
+    enddo
+    
+    write(6,*)'characteristic shear, 1,  0, -1,  1,    -1,  0,  1,  2, = ',characteristicShear(4)
+    write(6,*)'characteristic shear, -1, -1,  2,  6,     1,  1, -2,  1, =',characteristicShear(7)
+    write(6,*)'characteristic shear, 1,  0, -1, -2,     1,  0, -1,  1, =',characteristicShear(13)
+    write(6,*)'characteristic shear, 1,  1, -2, -3,     1,  1, -2,  2, =',characteristicShear(19)
+
+
+    do i = 1, sum(active)
+      forall(j=1:3, k=1:3) SchmidMatrix(j,k,i) = direction_vector(j,i) * normal_vector(k,i)
     enddo
 
-end program corresponcence_matrix
\ No newline at end of file
+    do i = 1, sum(active)
+      corresponcenceMatrix(1:3,1:3,i) = matmul(math_axisAngleToR(normal_vector(1:3,i),pi),&
+                                               I3+characteristicShear(i)*SchmidMatrix(1:3,1:3,i))
+      
+    enddo
+    
+    write(6,*)'correspondence matrix for 1,  0, -1,  1,    -1,  0,  1,  2 =====',corresponcenceMatrix(1:3,1:3,4)
+    write(6,*)'ooooooooooooooooooooooooooooooooooooooooooooooo'
+    write(6,*)'correspondence matrix for -1, -1,  2,  6,     1,  1, -2,  1 =====',corresponcenceMatrix(1:3,1:3,7)
+    write(6,*)'ooooooooooooooooooooooooooooooooooooooooooooooo'
+    write(6,*)'correspondence matrix for 1,  0, -1, -2,     1,  0, -1,  1 =====',corresponcenceMatrix(1:3,1:3,13)
+    write(6,*)'ooooooooooooooooooooooooooooooooooooooooooooooo'
+    write(6,*)'correspondence matrix for 1,  1, -2, -3,     1,  1, -2,  2 =====',corresponcenceMatrix(1:3,1:3,19)
+
+
+end program corresponcence_matrix
+
diff --git a/math.mod b/math.mod
new file mode 100644
index 0000000..5f34ee6
Binary files /dev/null and b/math.mod differ