adequal

historical not-comparable

(historical) Approximately equal, in the context of infinitesimal calculus.

Japanese Meaning

（歴史的な用法で）無限小計算の文脈において、ほぼ等しい、同等とみなすという意味

In Fermat's method, two quantities are considered adequal when their difference is negligible compared to the quantities themselves.

フェルマーの手法では、二つの量は、それらの差が量そのものに比べて無視できる場合、ほぼ等しいと見なされます。

Sense（1）

(historical) Approximately equal, in the context of infinitesimal calculus.