principal part


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principal part

[′prin·sə·pəl ′pärt]
(mathematics)
The principal part of an analytic function ƒ (z) defined in an annulus about a point z0 is the sum of terms in its Laurent expansion about z0 with negative powers of (z-z0).
A principal part of a triangle is one of its sides or one of its interior angles.
References in classic literature ?
It is, indeed, a feast in which flowers play a principal part.
When the place couldn't hold no more, the duke he quit tending door and went around the back way and come on to the stage and stood up before the curtain and made a little speech, and praised up this tragedy, and said it was the most thrillingest one that ever was; and so he went on a- bragging about the tragedy, and about Edmund Kean the Elder, which was to play the main principal part in it; and at last when he'd got everybody's expecta- tions up high enough, he rolled up the curtain, and the next minute the king come a-prancing out on all fours, naked; and he was painted all over, ring- streaked-and-striped, all sorts of colors, as splendid as a rainbow.
I do not think any young woman has a right to make a choice that may be disagreeable and inconvenient to the principal part of her family, and be giving bad connections to those who have not been used to them.
The repast was long and sumptuous; excellent Spanish wine, fine Morbihan oysters, exquisite fish from the mouth of the Loire, enormous prawns from Paimboeuf, and delicious game from the moors, constituted the principal part of it.
Gentlemen sometimes do not realize--" Her voice faded away, but Miss Bartlett seemed to understand and a conversation developed, in which gentlemen who did not thoroughly realize played a principal part.
It is all round the house, but the principal part is on the south side and has evidently always been so.
The maid had orders to make me some chocolate in the morning before she came away, and did so, and at noon she brought me the sweetbread of a breast of veal, whole, and a dish of soup for my dinner; and after this manner she nursed me up at a distance, so that I was mightily well pleased, and quickly well, for indeed my dejections before were the principal part of my illness.
Having procured a black Padre for a guide, and a Spaniard who had served in the Peninsular war as an interpreter, we visited a collection of buildings, of which an ancient church formed the principal part.
Besides, he cannot possibly be on such intimate terms with Nastasia Philipovna as she gave us to understand; that's the principal part of the mystery
These are the principal parts and most worthy of notice in Hippodamus's plan.
He was to be the means of bringing together again these two people who had played the principal parts in Lovell's drama--his new employer and the woman who had ruined his life.
And when I came it was the same: everything was neglected but French, German, music, singing, dancing, fancy-work, and a little drawing--such drawing as might produce the greatest show with the smallest labour, and the principal parts of which were generally done by me.