diff --git a/src/assignments/assignment06/symbolic_differentiation.rs b/src/assignments/assignment06/symbolic_differentiation.rs
index 2269d13..f46c5fc 100644
--- a/src/assignments/assignment06/symbolic_differentiation.rs
+++ b/src/assignments/assignment06/symbolic_differentiation.rs
@@ -6,7 +6,7 @@ use std::ops::*;
 /// Rational number represented by two isize, numerator and denominator.
 ///
 /// Each Rational number should be normalized so that `demoninator` is nonnegative and `numerator` and `demoninator` are coprime.
-/// See [`normalize`] for examples. As a corner case, 0 is represented by Rational { numerator: 0, demoninator: 0 }.
+/// See `normalize` for examples. As a corner case, 0 is represented by Rational { numerator: 0, demoninator: 0 }.
 ///
 /// For "natural use", Rational also overloads standard arithmetic operations, i.e, `+`, `-`, `*`, `/`.
 ///
diff --git a/src/assignments/assignment09/bigint.rs b/src/assignments/assignment09/bigint.rs
index 33a96e5..b1a1f51 100644
--- a/src/assignments/assignment09/bigint.rs
+++ b/src/assignments/assignment09/bigint.rs
@@ -11,7 +11,7 @@ use std::{iter::zip, ops::*};
 /// For example, the vector `vec![44,345,3]` represents the integer
 /// `44 * (2^32)^2 + 345 * (2^32) + 3`,
 /// and the vector `vec![u32::MAX - 5, u32::MAX - 7]` represents the integer
-/// `- (5 * 2^32 + 8)
+/// `- (5 * 2^32 + 8)`
 ///
 /// You will implement the `Add` and `Sub` trait for this type.
 ///