noun
integration method; method of integration
A mathematical term referring to a technique or method for performing integration, often used in calculus or numerical analysis contexts.
この積算法は複雑な関数にも適用できる。
This integration method can be applied to complex functions as well.
Compound of 積算 (せきさん, 'integration' or 'cumulative calculation') and 法 (ほう, 'method'). The exact historical derivation is uncertain; the spelling is conventionally associated with mathematical integration techniques.