# Math Without Libraries
How math functions work underneath programming libraries.
## Topics
- Absolute value
- Clamp
- Modulo and wrapping
- Square roots
- Sine and cosine approximations
- Tangent
- atan2
- Radians and degrees
## Public canonical lessons
- [Visual Angle Wrapping](/articles/0acc962a-66da-4990-8014-8fd781b9de25)
- [Visual Pi Dependencies](/articles/ec3ebdf4-f6cc-47bf-b597-56fc7b53d130)
- [Visual Degrees vs Radians](/articles/4bc70fd7-fa6e-4989-988f-834ff34babdf)
- [Visual Radians Without Math Libraries](/articles/7090a8d6-5f02-456e-82ec-31741bd1fe38)
- [Visual Unit Circle Sine and Cosine Without Math Libraries](/articles/ad8e2329-c2a5-4f28-a4fb-251496ff9069)
- [Visual Tangent Without Math Libraries](/articles/79e757c8-e0c8-44b1-b6ad-07587c459af5)
- [Visual Inverse Trig and atan2 Without Math Libraries](/articles/85a06148-c2a9-429d-93e4-3b8ffcb93089)
## Rule
Do not regenerate duplicate visuals. Link the canonical public article first.