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From your description, I fail to understand how does it depend. You're saying that the algorithm is wrong, and changing the type doesn't help. If the type is no
by maremp 7y ago
From your description, I fail to understand how does it depend. You're saying that the algorithm is wrong, and changing the type doesn't help. If the type is not the issue, what difference does it make?
- justmedep 7y agoA single problem can be solved by using many different algorithms. However, even though algorithm A and B are "correct" they can behave differently when rounding errors are introduced. For example – if algorithm A uses https://en.wikipedia.org/wiki/Kahan_summation_algorithm https://en.wikipedia.org/wiki/Kahan_summation_algorithm and B uses naive summation then you can expect the end result of A to be more precise than the end result of B – even though both algorithms are correct.
- MaxBarraclough 7y ago> and B uses naive summation then you can expect the end result of A to be more precise than the end result of B – even though both algorithms are correct. Formally speaking, no. The problem can be defined precisely. At least one of the algorithms fails to solve the problem. In practice of course, some amount of error may be acceptable.