Improve knowledge base

1 files changed, 2 insertions, 2 deletions

diff --git a/source/know/concept/cylindrical-polar-coordinates/index.md b/source/know/concept/cylindrical-polar-coordinates/index.md
index fe7d7c1..cf227a6 100644
--- a/source/know/concept/cylindrical-polar-coordinates/index.md
+++ b/source/know/concept/cylindrical-polar-coordinates/index.md
@@ -12,9 +12,9 @@ layout: "concept"
 by describing the location of a point in space
 using the variables $$(r, \varphi, z)$$.
 The $$z$$-axis is unchanged from the Cartesian system,
-hence it is called *cylindrical*.
+hence the name *cylindrical*.
 
-Cartesian coordinates $$(x, y, z)$$
+[Cartesian coordinates](/know/concept/cartesian-coordinates/) $$(x, y, z)$$
 and the cylindrical system $$(r, \varphi, z)$$ are related by:
 
 $$\begin{aligned}