I don't need something that's computational but more of something that can write formulas using integral signs, square root signs, etc. to show steps for my project.
#4
whybother
166
0
Do you just mean learning Latex? There are lots of online compliers for it too, if you don't want to use it often - just google for them.
I'm reviewing Meirovitch's "Methods of Analytical Dynamics," and I don't understand the commutation of the derivative from r to dr:
$$
\mathbf{F} \cdot d\mathbf{r} = m \ddot{\mathbf{r}} \cdot d\mathbf{r} = m\mathbf{\dot{r}} \cdot d\mathbf{\dot{r}}
$$