In connection with the discussion of projection tag I have noticed that there is the tag called map-projections.

This tag was very likely created with cartography in mind. The the first occurrence found by this SEDE query is the question How do great circles project on the equirectangular projection?. To clarify the distinction I will quote from the Wikipedia article on map projection: "More generally, the surfaces of planetary bodies can be mapped even if they are too irregular to be modeled well with a sphere or ellipsoid; see below. Even more generally, projections are the subject of several pure mathematical fields, including differential geometry and projective geometry. However, "map projection" refers specifically to a cartographic projection."

However, if you look at how the tag is actually used, there are currently 22 questions, most of them seem to be about projection in the sense of linear algebra. (There are only two questions which are also tagged cartography.)

What should be done with the tag map-projection?

• Clarify in the tag-info that it is intended for cartographic projection and retag the existing questions in accordance with this?
• Remove the tag completely since it is likely to be ambiguous?
• Rename the tag in the way that it becomes less ambiguous - for example, projections-cartography or cartographic-projections?
• Embrace the chaos and use it for both meanings - projection in cartography and projection map?

If we keep the tag, it would probably be useful to create tag-excerpt and tag-wiki clarifying how the tag is supposed to be used.

In connection with the discussion of projection tag I have noticed that there is the tag called map-projections.

This tag was very likely created with cartography in mind. The the first occurrence found by this SEDE query is the question How do great circles project on the equirectangular projection?. To clarify the distinction I will quote from the Wikipedia article on map projection: "More generally, the surfaces of planetary bodies can be mapped even if they are too irregular to be modeled well with a sphere or ellipsoid; see below. Even more generally, projections are the subject of several pure mathematical fields, including differential geometry and projective geometry. However, "map projection" refers specifically to a cartographic projection."

However, if you look at how the tag is actually used, there are currently 22 questions, most of them seem to be about projection in the sense of linear algebra. (There are only two questions which are also tagged cartography.)

What should be done with the tag map-projections?

• Clarify in the tag-info that it is intended for cartographic projection and retag the existing questions in accordance with this?
• Remove the tag completely since it is likely to be ambiguous?
• Rename the tag in the way that it becomes less ambiguous - for example, projections-cartography or cartographic-projections?
• Embrace the chaos and use it for both meanings - projection in cartography and projection map?

If we keep the tag, it would probably be useful to create tag-excerpt and tag-wiki clarifying how the tag is supposed to be used.

In connection with the discussion of projection tag I have noticed that there is the tag called map-projections

This tag was very likely created with cartography in mind. The the first occurrence found by this SEDE query is the question How do great circles project on the equirectangular projection?. To clarify the distinction I will quote from the Wikipedia article on map projection: "More generally, the surfaces of planetary bodies can be mapped even if they are too irregular to be modeled well with a sphere or ellipsoid; see below. Even more generally, projections are the subject of several pure mathematical fields, including differential geometry and projective geometry. However, "map projection" refers specifically to a cartographic projection."

However, if you look at how the tag is actually used, there are currently 22 questions, most of them seem to be about projection in the sense of linear algebra. (There are only two questions which are also tagged cartography.)

What should be done with the tag map-projection?

• Clarify in the tag-info that it is intended for cartographic projection and retag the existing questions in accordance with this?
• Remove the tag completely since it is likely to be ambiguous?
• Embrace the chaos and use it for both meanings - projection in cartography and projection map?

If we keep the tag, it would probably be useful to create tag-excerpt and tag-wiki clarifying how the tag is supposed to be used.

In connection with the discussion of projection tag I have noticed that there is the tag called map-projections.

This tag was very likely created with cartography in mind. The the first occurrence found by this SEDE query is the question How do great circles project on the equirectangular projection?. To clarify the distinction I will quote from the Wikipedia article on map projection: "More generally, the surfaces of planetary bodies can be mapped even if they are too irregular to be modeled well with a sphere or ellipsoid; see below. Even more generally, projections are the subject of several pure mathematical fields, including differential geometry and projective geometry. However, "map projection" refers specifically to a cartographic projection."

However, if you look at how the tag is actually used, there are currently 22 questions, most of them seem to be about projection in the sense of linear algebra. (There are only two questions which are also tagged cartography.)

What should be done with the tag map-projection?

• Clarify in the tag-info that it is intended for cartographic projection and retag the existing questions in accordance with this?
• Remove the tag completely since it is likely to be ambiguous?
• Rename the tag in the way that it becomes less ambiguous - for example, projections-cartography or cartographic-projections?
• Embrace the chaos and use it for both meanings - projection in cartography and projection map?

If we keep the tag, it would probably be useful to create tag-excerpt and tag-wiki clarifying how the tag is supposed to be used.