fix typos & update ci

.github/workflows/release.yml

@@ -13,8 +13,8 @@ jobs:
 
       - uses: erlef/setup-beam@v1
         with:
-          otp-version: "26.2"
-          gleam-version: "1.4.1"
+          otp-version: "27.0"
+          gleam-version: "1.8.0"
 
       - uses: actions/setup-node@v3
         with:

.github/workflows/test.yml

@@ -19,8 +19,8 @@ jobs:
 
       - uses: erlef/setup-beam@v1
         with:
-          otp-version: "26.2"
-          gleam-version: "1.4.1"
+          otp-version: "27.0"
+          gleam-version: "1.8.0"
 
       - uses: actions/setup-node@v3
         with:

src/gleam_community/maths.gleam

@@ -212,7 +212,7 @@ pub fn divisors(n: Int) -> List(Int) {
 fn find_divisors(n: Int) -> set.Set(Int) {
   let nabs = float.absolute_value(int.to_float(n))
   // Usage of let assert: 'nabs' is non-negative so no error should occur. The function
-  // 'float.squre_root' will only return an error in case a non-negative value is given as input.
+  // 'float.square_root' will only return an error in case a negative value is given as input.
   let assert Ok(sqrt_result) = float.square_root(nabs)
   let max = float.round(sqrt_result) + 1
 
@@ -241,7 +241,7 @@ fn do_find_divisors(n: Int, max: Int, acc: set.Set(Int), i: Int) -> set.Set(Int)
 /// </div>
 ///
 /// The function returns all the positive divisors of an integer, excluding the
-/// number iteself.
+/// number itself.
 ///
 /// <details>
 ///     <summary>Example:</summary>
@@ -735,7 +735,7 @@ pub fn polar_to_cartesian(r: Float, theta: Float) -> #(Float, Float) {
 pub fn cartesian_to_polar(x: Float, y: Float) -> #(Float, Float) {
   // Calculate 'r' and 'theta'
   // Usage of let assert: a sum of squares is always non-negative so no error should occur, i.e., 
-  // the function 'float.squre_root' will only return an error in case a non-negative value is given
+  // the function 'float.square_root' will only return an error in case a negative value is given
   // as input.
   let assert Ok(r) = float.square_root(x *. x +. y *. y)
   let theta = atan2(y, x)
@@ -1706,7 +1706,7 @@ pub fn tau() -> Float {
 pub fn golden_ratio() -> Float {
   // Calculate the golden ratio: (1 + sqrt(5)) / 2
   // Usage of let assert: A positive number '5' is given a input so no error should occur, i.e., 
-  // the function 'float.squre_root' will only return an error in case a non-negative value is 
+  // the function 'float.square_root' will only return an error in case a negative value is 
   // given as input.
   let assert Ok(sqrt5) = float.square_root(5.0)
   { 1.0 +. sqrt5 } /. 2.0

test/gleam_community/elementary_test.gleam

@@ -287,8 +287,10 @@ pub fn natural_logarithm_test() {
   let assert Ok(tol) = float.power(10.0, -6.0)
   // Check that the function agrees, at some arbitrary input
   // points, with known function values
-  maths.natural_logarithm(1.0)
-  |> should.equal(Ok(0.0))
+  let assert Ok(result) = maths.natural_logarithm(1.0)
+  result
+  |> maths.is_close(0.0, 0.0, tol)
+  |> should.be_true()
 
   let assert Ok(result) = maths.natural_logarithm(0.5)
   result
@@ -302,17 +304,24 @@ pub fn natural_logarithm_test() {
 }
 
 pub fn logarithm_test() {
+  let assert Ok(tol) = float.power(10.0, -6.0)
+
   // Check that the function agrees, at some arbitrary input
   // points, with known function values
-  maths.logarithm(10.0, 10.0)
-  |> should.equal(Ok(1.0))
-
-  maths.logarithm(10.0, 100.0)
-  |> should.equal(Ok(0.5))
+  let assert Ok(result) = maths.logarithm(10.0, 10.0)
+  result
+  |> maths.is_close(1.0, 0.0, tol)
+  |> should.be_true()
 
-  maths.logarithm(1.0, 0.25)
-  |> should.equal(Ok(0.0))
+  let assert Ok(result) = maths.logarithm(10.0, 100.0)
+  result
+  |> maths.is_close(0.5, 0.0, tol)
+  |> should.be_true()
 
+  let assert Ok(result) = maths.logarithm(1.0, 0.25)
+  result
+  |> maths.is_close(0.0, 0.0, tol)
+  |> should.be_true()
   // Check that we get an error when the function is evaluated
   // outside its domain
   maths.logarithm(1.0, 1.0)
@@ -324,11 +333,15 @@ pub fn logarithm_test() {
   maths.logarithm(-1.0, 1.0)
   |> should.be_error()
 
-  maths.logarithm(1.0, 10.0)
-  |> should.equal(Ok(0.0))
+  let assert Ok(result) = maths.logarithm(1.0, 10.0)
+  result
+  |> maths.is_close(0.0, 0.0, tol)
+  |> should.be_true()
 
-  maths.logarithm(maths.e(), maths.e())
-  |> should.equal(Ok(1.0))
+  let assert Ok(result) = maths.logarithm(maths.e(), maths.e())
+  result
+  |> maths.is_close(1.0, 0.0, tol)
+  |> should.be_true()
 
   maths.logarithm(-1.0, 2.0)
   |> should.be_error()
@@ -338,11 +351,15 @@ pub fn logarithm_2_test() {
   let assert Ok(tol) = float.power(10.0, -6.0)
   // Check that the function agrees, at some arbitrary input
   // points, with known function values
-  maths.logarithm_2(1.0)
-  |> should.equal(Ok(0.0))
+  let assert Ok(result) = maths.logarithm_2(1.0)
+  result
+  |> maths.is_close(0.0, 0.0, tol)
+  |> should.be_true()
 
-  maths.logarithm_2(2.0)
-  |> should.equal(Ok(1.0))
+  let assert Ok(result) = maths.logarithm_2(2.0)
+  result
+  |> maths.is_close(1.0, 0.0, tol)
+  |> should.be_true()
 
   let assert Ok(result) = maths.logarithm_2(5.0)
   result