diff --git a/tools/math.go b/tools/math.go
index d35b1d83..764d0b6d 100644
--- a/tools/math.go
+++ b/tools/math.go
@@ -1,5 +1,6 @@
 package tools
 
+// MinInt returns the smaller of two `int`s, "a", or "b".
 func MinInt(a, b int) int {
 	if a < b {
 		return a
@@ -8,6 +9,7 @@ func MinInt(a, b int) int {
 	return b
 }
 
+// MaxInt returns the greater of two `int`s, "a", or "b".
 func MaxInt(a, b int) int {
 	if a > b {
 		return a