Editing Error (section)

==Numerical analysis==
{{main| Approximation error}}
[[Numerical analysis]] provides a variety of techniques to represent (store) and compute [[approximation]]s to mathematical numerical values. Errors arise from a trade-off between efficiency (space and computation time) and precision, which is limited anyway, since (using common [[floating-point arithmetic]]) only a finite amount of values can be represented exactly. The discrepancy between the exact mathematical value and the stored/computed value is called the [[approximation error]].