Add a floor function to factorial example

misalcedo · Jan 5, 2022 · 0218699 · 0218699
1 parent 9df8c6d
commit 0218699
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/docs/src/factorial.md b/docs/src/factorial.md
@@ -9,9 +9,11 @@ In this chapter we will implement [factorial](https://en.wikipedia.org/wiki/Fact
 Create a file named `factorial.ta` with the following contents:
 
 ```tortuga
-@round(@n) = round(n, n % 1)
-@round(@n, @remainder >= 0.5) = 1 + n - (n % 1)
-@round(@n, @remainder < 0.5) = n - (n % 1)
+@floor(@n) = n - (n % 1)
+
+@round(@n) = round(floor(n), n % 1)
+@round(@n, @remainder >= 0.5) = 1 + n
+@round(@n, @remainder < 0.5) = n
 
 @factorial(@n = 0) = 1
 @factorial(@n > 0) = [