Yu J Y. Item Response Theory Application (in Chinese). Nanjing: Jiangshu Education Publishing House, 1992

余嘉元。 项目反应理论及其应用。 南京：江苏教育出版社，1992。

youdao

It can be x plus some change in x plus j times y plus a change in y.

可以写成 x 加上 x 方向的变化量,再加上 y 加上 y 方向的变化量

耶鲁公开课 - 基础物理课程节选

Initially, its location as a function of time is equal to i times x plus j times y.

初始时刻,它的位移作为时间的函数等于,i ? x + j ? y

耶鲁公开课 - 基础物理课程节选

So i and j are vectors of length one, pointing along x and y.

和 j 是模长为1的矢量,分别指向 x 轴和 y 轴方向

耶鲁公开课 - 基础物理课程节选

The 2009 Paddy Power Gold Cup winner obliged at 5-2 for trainer Edward O'Grady, ahead of J'y Vole in second, with former RSA Chase winner Cooldine out of the places for Mullins.

BBC: Hurricane Fly wins at Fairyhouse in Willie Mullins treble

Iwasaki K, Cyong JC, Kitada S, Kitamura H, Ozeki J, Satoh Y, Suzuki T, Sasaki H.

FORBES: Chinese Medicine Infiltrates Scientific Publishing

El nombramiento de Roberto Prieto, estrecho confidente de Santos, y el experimentado asesor politico J.

CENTERFORSECURITYPOLICY: El Obama colombiano