Sophia 70841e6497 Add "Math Planet" (#27222) ...

Add learn Algebra on Math Planet as another source of learning

2019-03-21 18:51:02 +05:30

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arabic

fix: rename guide folders [arabic] (#35281)

2019-03-05 15:30:12 -08:00

chinese

fix some syntax error (#34137)

2019-03-19 23:42:48 -07:00

english

Add "Math Planet" (#27222)

2019-03-21 18:51:02 +05:30

portuguese

fix: rename guide folders [portuguese] (#35283)

2019-03-05 16:13:55 -08:00

russian

fix: rename guide folders [russian] (#35284)

2019-03-05 15:45:14 -08:00

spanish

Removal of off-place characters (#24709)

2019-03-10 09:52:40 -07:00