Condition number
FUNCTION K OF THE INPUT X OF A WELL-POSED PROBLEM WHICH DESCRIBES HOW MUCH ITS VARIATION INFLUENCES THE VARIATION OF THE OUTPUT G(X)
Ill-conditioned; Condition numbers; Ill-conditioned matrix; Matrix condition number; Ill-conditioning; Conditioning number; Well-conditioned
In numerical analysis, the condition number of a function measures how much the output value of the function can change for a small change in the input argument. This is used to measure how sensitive a function is to changes or errors in the input, and how much error in the output results from an error in the input.