document non random signal functions

tutorial/tutorial.mdx

@@ -731,6 +731,33 @@ The following functions will return a pattern. We will see later what that means
 
 {{ 'Pattern.legato' | jsdoc }}
 
+## Continuous Signals
+
+Signals are patterns with continuous values, meaning they have theoretically infinite steps.
+They can provide streams of numbers that can be sampled at discrete points in time.
+
+{{ 'Pattern.range' | jsdoc }}
+
+{{ 'saw' | jsdoc }}
+
+{{ 'saw2' | jsdoc }}
+
+{{ 'sine' | jsdoc }}
+
+{{ 'sine2' | jsdoc }}
+
+{{ 'cosine' | jsdoc }}
+
+{{ 'cosine2' | jsdoc }}
+
+{{ 'tri' | jsdoc }}
+
+{{ 'tri2' | jsdoc }}
+
+{{ 'square' | jsdoc }}
+
+{{ 'square2' | jsdoc }}
+
 ## Using Superdirt via OSC
 
 In mainline tidal, the actual sound is generated via Superdirt, which runs inside Supercollider.