diagonal
英[da?'?g(?)n(?)l]
美[da?'?ɡ?nl]
- adj. 斜的；對角線的；斜紋的
- n. 對角線；斜線
詞態(tài)變化
復(fù)數(shù):?diagonals;副詞:?diagonally;
中文詞源
diagonal 對角線的
dia-, 穿過。-gon, 彎，角，詞源同knee, octagonal. 即穿過去的，成對角的。
英文詞源
- diagonal
- diagonal: [16] Diagonal is commonly used simply as a synonym for oblique, but in strict mathematical terms it denotes a line joining two non-adjacent angles of a polygon. This reveals far more clearly its origins. It comes from diagōnālis, a Latin adjective derived from Greek diagónios. This was a compound formed from the prefix dia- ‘a(chǎn)cross’ and gōníā ‘a(chǎn)ngle’ (as in English polygon), meaning ‘from angle to angle’. Gōníā is related ultimately to English knee and genuine.
=> genuine, knee, polygon - diagonal (adj.)
- 1540s (implied in diagonally), from Middle French diagonal, from Latin diagonalis, from diagonus "slanting line," from Greek diagonios "from angle to angle," from dia- "across" (see dia-) + gonia "angle" (see -gon). As a noun, from 1570s.
雙語例句
- 1. The book has a diagonal black stripe on the cover.
- 書的封面上有條連接對角的黑斜線.
來自《簡明英漢詞典》
- 2. Footsteps had scored a diagonal path through the snow.
- 腳印在雪地上留下了一條對角線.
來自《簡明英漢詞典》
- 3. Draw a diagonal line to divide the square into two triangles.
- 畫一條對角線,把正方形分成兩個三角形.
來自辭典例句
- 4. The lumped mass matrix is a diagonal matrix.
- 集中質(zhì)量陣是一個對用陣.
來自辭典例句
- 5. The square matrix is called a diagonal matrix.
- 該方矩陣稱為對角矩陣.
來自辭典例句