sparse

乏しい、少ない

量や数がごく少ない。

やさしい英語で： Present in only small amounts or numbers.

• The report gives sparse details.
• His hair became sparse as he grew older.
• Evidence for the theory remains sparse.

類義語： scanty, limited, meagre

反対語： abundant, plentiful

よく使う表現： sparse evidence, sparse details, sparse population

まばらな

一つ一つの物の間に大きな空間があり、離れて分布している。

やさしい英語で： Spread out with large empty spaces between individual things.

• Sparse trees dotted the plain.
• The island has sparse settlements along its coast.
• We walked through sparse woodland with plenty of open ground.

類義語： scattered, widely spaced

反対語： dense

よく使う表現： sparse vegetation, sparse trees, sparse settlements

疎な

値のほとんどがゼロで、ゼロ以外の値が少ししかない。

やさしい英語で： Containing mostly zeros, with only a few values that are not zero.

• The program stores a sparse matrix.
• Sparse arrays can save a lot of memory.
• This algorithm works well when the input matrix is sparse.

反対語： dense

よく使う表現： sparse matrix, sparse array, sparse data