Hello ! I'm trying to modify my kb on paperspigot and I would like it if you guys could help me understand things about this math helper.
https://gyazo.com/7032ee28d5ee84936d327ecd304c1ffd
1:What does the letter i and D represent or mean.
2:Would it help me with my kb if i play with this .
If you are looking for the source:
Sorry for my poor english
https://gyazo.com/7032ee28d5ee84936d327ecd304c1ffd
1:What does the letter i and D represent or mean.
2:Would it help me with my kb if i play with this .
If you are looking for the source:
Sorry for my poor english
