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--- 184_notes:math_review [2018/05/17 13:35] – [Vector Notation] curdemma
+++ 184_notes:math_review [2018/05/17 13:38] – [Vector Addition] curdemma
@@ Line 50: / Line 50: @@
 $$\vec{a} = |\vec{a}|\hat{a}$$
-We also use unit vectors to describe the x, y, and z coordinate directions. This are represented by an $\hat{x}$, $\hat{y}$, and $\hat{z}$ or by an $\hat{i}$, $\hat{j}$, and $\hat{k}$. Using these coordinate unit vector, you can write any vector in terms of its components. These are common alternative ways to write vectors (as opposed to the bracket notation).
+We also use unit vectors to describe the x, y, and z coordinate directions. These are represented by an $\hat{x}$, $\hat{y}$, and $\hat{z}$ or by an $\hat{i}$, $\hat{j}$, and $\hat{k}$. Using these coordinate unit vectors, you can write any vector in terms of its components. These are common alternative ways to write vectors (as opposed to the bracket notation).
 $$\vec{a} = a_x\hat{x}+a_y\hat{y}+a_z\hat{z}$$
 $$\vec{a} = a_x\hat{i}+a_y\hat{j}+a_z\hat{k}$$
@@ Line 56: / Line 56: @@
 ==== Vector Addition ====
-{{ course_planning:course_notes:2d_vector_addition.png?250|graphical vector addition}}
+[{{ course_planning:course_notes:2d_vector_addition.png?250|graphical vector addition}}]
-{{ course_planning:course_notes:2d_vector_subtraction.png?225|graphical vector subtraction}}
+[{{ course_planning:course_notes:2d_vector_subtraction.png?225|graphical vector subtraction}}]
 Two vectors are added (or subtracted) component by component:
 $$ \vec{a} +\vec{b} = \langle a_x, a_y, a_z \rangle + \langle b_x, b_y, b_z \rangle = \langle a_x+b_x, a_y+b_y, a_z+b_z \rangle  $$