From my limited knowledge, they both are related to solving recurrence relation.
- Can the terms be used interchangeably?
In terms of algorithm, I found the following:
Backtracking is a general algorithm for finding all (or some) solutions to some computational problems, notably constraint satisfaction problems, that incrementally builds candidates to the solutions, and abandons a candidate ("backtracks") as soon as it determines that the candidate cannot possibly be completed to a valid solution. wiki
Backward substitution is a procedure of solving a system of linear algebraic equations Ux=y, where U is an upper triangular matrix whose diagonal elements are not equal to zero. The matrix U can be a factor of another matrix A in its decomposition (or factorization) LU, where L is a lower triangular matrix. This decomposition can be obtained by many methods (for example, the Gaussian elimination method with or without pivoting, the Gaussian compact scheme, the Cholesky decomposition, etc.). Here we also should mention the QR decomposition when the matrix A is represented in the form A=QR, where Q is an orthogonal matrix and R is an upper triangular matrix. Since the matrix U is triangular, a procedure of solving a linear system with the matrix U is a modification of the general substitution method and can be written using simple formulas.
A similar procedure of solving a linear system with a lower triangular matrix is called the forward substitution. Note that the backward substitution discussed here can be considered as a part of the backward Gaussian elimination in the Gaussian elimination method for solving linear systems.
There exists a similar method called the backward substitution with normalization. The scheme of this modification is more complex, since a number of special operations are performed to reduce the effect of round-off errors on the results. algowiki
Are backward substitution and backtracking the same in terms of recurrence relation?
Is backtracking algorithm is the same as the recurrence relation's backtracking?
Is backward substitution (same as back substitution?) in recurrence relation the same with backward substitution algorithm?
Is backtracking algorithm the same as backward substitution?
What are their relations to each other? backtracking (recurrence relation) - backtracking (algorithm) - backward substitution(recurrence relation) - backward substitution(algorithm)
Can the terms be used interchangeably?