fike是什么意思

vi. 匆匆忙忙

n. 杞人忧天

英文词源

fike (v.): Middle English fyken "move about restlessly" (early 13c.), from Old Norse fikjask "to desire eagerly," fika (in fika sig upp "climb up nimbly," of a spider), probably from a general North Sea Germanic word related to the source of German ficken "to move about briskly." Later as "give trouble, vex" (1570s), a sense surviving especially in Scottish. Hence also fikery "vexatious trouble" (1823); fiky "causing trouble about trifles" (1768).

1. Bauer - Fike has giver a estimate of eigenualues for a diagonallzation matixwith a perturbation.: 在矩阵可对角化条件下,Baner - Fike已给出了一个特征值扰动的估计式.