typos: fix a grabbag of typos all over the place

4 files changed, 4 insertions, 4 deletions

diff --git a/src/libcore/num/bignum.rs b/src/libcore/num/bignum.rs
index baeca6b8b49..18b34e24fcb 100644
--- a/src/libcore/num/bignum.rs
+++ b/src/libcore/num/bignum.rs
@@ -110,7 +110,7 @@ macro_rules! define_bignum {
     ($name:ident: type=$ty:ty, n=$n:expr) => (
         /// Stack-allocated arbitrary-precision (up to certain limit) integer.
         ///
-        /// This is backed by an fixed-size array of given type ("digit").
+        /// This is backed by a fixed-size array of given type ("digit").
         /// While the array is not very large (normally some hundred bytes),
         /// copying it recklessly may result in the performance hit.
         /// Thus this is intentionally not `Copy`.
diff --git a/src/libcore/num/flt2dec/mod.rs b/src/libcore/num/flt2dec/mod.rs
index 7f7c61938cb..57d4bccbfa6 100644
--- a/src/libcore/num/flt2dec/mod.rs
+++ b/src/libcore/num/flt2dec/mod.rs
@@ -461,7 +461,7 @@ pub fn to_shortest_str<'a, T, F>(mut format_shortest: F, v: T,
 /// You probably would want `strategy::grisu::format_shortest` for this.
 ///
 /// The `dec_bounds` is a tuple `(lo, hi)` such that the number is formatted
-/// as decimal only when `10^lo <= V < 10^hi`. Note that this is the *apparant* `V`
+/// as decimal only when `10^lo <= V < 10^hi`. Note that this is the *apparent* `V`
 /// instead of the actual `v`! Thus any printed exponent in the exponential form
 /// cannot be in this range, avoiding any confusion.
 ///
diff --git a/src/libcore/num/flt2dec/strategy/grisu.rs b/src/libcore/num/flt2dec/strategy/grisu.rs
index 5b4b2e46478..13e01d9a7f7 100644
--- a/src/libcore/num/flt2dec/strategy/grisu.rs
+++ b/src/libcore/num/flt2dec/strategy/grisu.rs
@@ -488,7 +488,7 @@ pub fn format_exact_opt(d: &Decoded, buf: &mut [u8], limit: i16)
         // but scaling `max_ten_kappa << e` by 10 can result in overflow.
         // thus we are being sloppy here and widen the error range by a factor of 10.
         // this will increase the false negative rate, but only very, *very* slightly;
-        // it can only matter noticably when the mantissa is bigger than 60 bits.
+        // it can only matter noticeably when the mantissa is bigger than 60 bits.
         return possibly_round(buf, 0, exp, limit, v.f / 10, (max_ten_kappa as u64) << e, err << e);
     } else if ((exp as i32 - limit as i32) as usize) < buf.len() {
         (exp - limit) as usize
diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index e942e8b6923..edff03025c5 100644
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -1383,7 +1383,7 @@ fn from_str_radix<T: FromStrRadixHelper>(src: &str, radix: u32)
 
     // all valid digits are ascii, so we will just iterate over the utf8 bytes
     // and cast them to chars. .to_digit() will safely return None for anything
-    // other than a valid ascii digit for a the given radix, including the first-byte
+    // other than a valid ascii digit for the given radix, including the first-byte
     // of multi-byte sequences
     let src = src.as_bytes();