diff --git a/education/software development/ECE1400/C.md b/education/software development/ECE1400/C.md
index 48785ee..9d12e93 100644
--- a/education/software development/ECE1400/C.md	
+++ b/education/software development/ECE1400/C.md	
@@ -111,6 +111,12 @@ If an ordinary character is included in the pattern matching string, it will be
 ## `rand`
 ```c
 // `srand` creates a seed to use for rng
-seed = srand(time(NULL));
+srand(time(NULL));
+
+// `rand` generates a random integer between 0 and `RAND_MAX`
+// To pick a number between a particular range, you can use the modulo
+// operator.
+// The below example picks a number between zero and four.
+int num = rand() % 4;
 
 ```
\ No newline at end of file