小数しょうすうてん以下いか桁数けたすうであれば
shōsūten ikanoke tasūdeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 小数点以下の桁数

1. if/when it's a matter of the number of decimal places; if/when regarding the number of decimal places

Ba Conditional
Computing