2014年10月20日 · Homework Statement What is r hat (^) like exactly and how do you calculate it? I know that it is something to do with unit vectors and that it should be gotten in some form of …

The symbols $\hat{x_1}$, $\hat{y_1}$, $\hat{x_2}$ and $\hat{y_2}$ can be applied just as well. In physics, this coordinate system is usually related to a non-inertial system, for example a …

2015年6月15日 · $\begingroup$ I'll second Ross's comment: I have always seen the hat used to denote a unit vector. Sometimes $\vec x$ is a vector of arbitrary length and $\hat x$ a unit …

2015年6月2日 · Yet, the comment I answered to did miss the meaning of the $\hat{}$ in the linked video (if you watch it, you'll notice that vectors are denoted with an arrow, and that the hat is …

2008年9月9日 · k-hat= is mostly used as hypotenuse (or somethimes it could be magnitude of i-hat and j-hat) which is usulay find by using Pythagorean equation. so (i-hat)^2 + (j-hat)^2 = (k …

The hat above the equals sign is an estimator. Originaly estimators are used on terms. For example: $$\widehat{\theta}(X)$$ But it has appeared (sometimes) more convenient to use it …

2010年1月23日 · dr^hat/dt = D[phi] * phi^hat Sorry for the horrible formating but I don't know how to make this better. The Attempt at a Solution I have a few problems with this first why in the …

2017年10月3日 · For those of you trying to do the ^^ smiley, here is a comparison of various methods (the first is \textsuperscript, the second is \^, the third is a scaled version of \wedge in …

2012年2月12日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …

2011年3月20日 · [tex]{\hat i},{\hat j},{\hat k}[/tex] are the unit vectors for Cartesian coordinates only. They are constant vectors. 2. Unit vectors have no units because they just signify …