/sci/ - Science & Math

Set structure:
Create set(s) A,B,C.
Populate set(s) A,B,C with alternating English alphabet: e.g: A[B],B[B],C[C]...
A[A,D,G,J,M,P,S,V,Y]
B[B,E,H,K,N,Q,T,W,Z]
C[C,F,I,L,O,R,U,X]
Combine these set(s):
A∪B[A,B,D,E,G,H,J,K,M,N,P,Q,S,T,V,W,Y,Z]
B∪C[B,C,E,F,H,I,K,L,N,O,Q,R,T,U,W,X,Z]
C∪A[A,C,D,F,G,I,J,L,M,N,O,P,R,S,U,V,X,Y]
A∪B∪C[A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z]
Usage:
To encode:
Start at set A∪B, then B∪C, then C∪A, then back to A∪B.
If needed value is missing from set(s), index in A∪B∪C, then return to A∪B.
Convert alphameric set signifiers to numeric via ordinary English alphabet placement.
Remove symbolic set signifiers.
Convert A∪B, B∪C, C∪A and A∪B∪C to numeric from their placement in their respective unified set(s).
To decode:
Reverse operation.
Example:
Plaintext:
MATHEMATICS
Encoded:
129123112142351235129123112142363121213