Add scalar angle multiplication

gemini-hlsw · Oct 2, 2023 · c56bbe0 · c56bbe0
1 parent fee13bf
commit c56bbe0
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/modules/core/shared/src/main/scala/lucuma/core/math/Angle.scala b/modules/core/shared/src/main/scala/lucuma/core/math/Angle.scala
@@ -301,14 +301,14 @@ object Angle extends AngleOptics {
       Angle.fromMicroarcseconds(toMicroarcseconds - a.toMicroarcseconds)
 
     /**
-    * Scalar multiplication of this angle and `a`. Exact
+    * Scalar multiplication of this angle and and natural number `a`. Exact
     * @group Operations
     */
     def *(a: Long): Angle =
       Angle.fromMicroarcseconds(toMicroarcseconds * a)
 
     /**
-    * Scalar multiplication of this angle and `a`. approximate
+    * Scalar multiplication of this angle and double precission number `a`. Approximate
     * @group Operations
     */
     def *?(a: Double): Angle =

diff --git a/modules/tests/shared/src/test/scala/lucuma/core/math/AngleSuite.scala b/modules/tests/shared/src/test/scala/lucuma/core/math/AngleSuite.scala
@@ -199,5 +199,6 @@ final class AngleSuite extends munit.DisciplineSuite {
     assertEquals(Angle.Angle90 *? 10, Angle.Angle180)
     assertEquals(Angle.Angle180 *? 0.5, Angle.Angle90)
     assert(((Angle.Angle180 *? 0.001) - Angle.fromDoubleDegrees(0.18)).toMicroarcseconds < 1000)
+    assert(((Angle.Angle180 *? -0.001) - Angle.fromDoubleDegrees(359.82)).toMicroarcseconds < 1000)
   }
 }