approximate solution
Technical term in mathematics and physics for a solution that is close to the exact answer, often used when an exact solution is difficult or impossible to obtain. Contrasts with 厳密解 (exact solution).
See also: 厳密解
Since the exact solution of this equation cannot be found, we calculated an approximate solution.
In numerical analysis, the accuracy of the approximate solution is important.
Compound of 近似 (approximation) + 解 (solution). The term is a direct conceptual borrowing from Western mathematics.