单词	Directional Derivative
释义	Directional Derivative (1) is the rate at which the function changes at in the direction . Let be a Unit Vector in Cartesian Coordinates, so (2) then (3) The directional derivative is often written in the notation (4)
随便看	Killing's Equation Killing Vectors Kimberling Sequence Kimberling Shuffle Kings Problem King Walk Kinney's Set Kinoshita-Terasaka Knot Kinoshita-Terasaka Mutants Kirby Calculus Kirby's List Kirkman's Schoolgirl Problem Kirkman Triple System Kissing Circles Problem Kissing Number Kiss Surface Kite Klarner-Rado Sequence Klarner's Theorem Klein-Beltrami Model Klein Bottle Klein Four-Group Klein-Gordon Equation Kleinian Group Klein Quartic

数学辞典收录了8975条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。