# Differences

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courses:lecture:sylec:drintro 2019/06/03 14:04 | courses:lecture:sylec:drintro 2019/06/03 14:05 current | ||
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Draw pictures of $\Vec{r}$ and $\Vec{r}$ + $d\Vec{r}$. | Draw pictures of $\Vec{r}$ and $\Vec{r}$ + $d\Vec{r}$. | ||

+ | **Student Conversations from Spring 2019** | ||

* $\vec r$ is a geometric object that points to a point from the origin. | * $\vec r$ is a geometric object that points to a point from the origin. | ||

* $r_x=x \hat x$, $r_y=y \hat y$, and $r_z=z \hat z.$ These statements are unique for $\vec r$. | * $r_x=x \hat x$, $r_y=y \hat y$, and $r_z=z \hat z.$ These statements are unique for $\vec r$. |