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-rw-r--r--content/know/concept/cylindrical-polar-coordinates/index.pdc4
1 files changed, 2 insertions, 2 deletions
diff --git a/content/know/concept/cylindrical-polar-coordinates/index.pdc b/content/know/concept/cylindrical-polar-coordinates/index.pdc
index 6242b9f..0b2acd1 100644
--- a/content/know/concept/cylindrical-polar-coordinates/index.pdc
+++ b/content/know/concept/cylindrical-polar-coordinates/index.pdc
@@ -47,7 +47,7 @@ $$\begin{aligned}
\end{aligned}$$
The cylindrical polar coordinates form an orthogonal
-[curvilinear](/know/concept/curvilinear-coordinates/) system,
+[curvilinear system](/know/concept/curvilinear-coordinates/),
whose scale factors $h_r$, $h_\varphi$ and $h_z$ we want to find.
To do so, we calculate the differentials of the Cartesian coordinates:
@@ -141,7 +141,7 @@ $$\begin{aligned}
\\
&+ \vu{e}_\varphi \Big( \pdv{V_r}{z} - \pdv{V_z}{r} \Big)
\\
- &+ \frac{\vu{e}_\varphi}{r} \Big( \pdv{(r V_\varphi)}{r} - \pdv{V_r}{\varphi} \Big)
+ &+ \frac{\vu{e}_z}{r} \Big( \pdv{(r V_\varphi)}{r} - \pdv{V_r}{\varphi} \Big)
\end{aligned}
}
\end{aligned}$$