September 2017 Update

Task/Trigonometric-functions/Jq/trigonometric-functions-1.jq

@@ -0,0 +1,25 @@
+# degrees to radians
+def radians:
+  (-1|acos) as $pi | (. * $pi / 180);
+
+def task:
+  (-1|acos) as $pi
+  |  ($pi / 180) as $degrees
+  | "Using radians:",
+    "  sin(-pi / 6)     = \( (-$pi / 6)    | sin )",
+    "  cos(3 * pi / 4)  = \( (3 * $pi / 4) | cos)",
+    "  tan(pi / 3)      = \( ($pi / 3)     | tan)",
+    "  asin(-1 / 2)     = \((-1 / 2)       | asin)",
+    "  acos(-sqrt(2)/2) = \((-(2|sqrt)/2)  | acos )",
+    "  atan(sqrt(3))    = \(      3 | sqrt | atan )",
+
+    "Using degrees:",
+    "  sin(-30)         = \((-30 * $degrees) | sin)",
+    "  cos(135)         = \((135 * $degrees) | cos)",
+    "  tan(60)          = \(( 60 * $degrees) | tan)",
+    "  asin(-1 / 2)     = \(        (-1 / 2) | asin / $degrees)",
+    "  acos(-sqrt(2)/2) = \( (-(2|sqrt) / 2) | acos / $degrees)",
+    "  atan(sqrt(3))    = \( (3 | sqrt)      | atan / $degrees)"
+;
+
+task

Task/Trigonometric-functions/Jq/trigonometric-functions-2.jq

@@ -0,0 +1,14 @@
+Using radians:
+  sin(-pi / 6)     = -0.49999999999999994
+  cos(3 * pi / 4)  = -0.7071067811865475
+  tan(pi / 3)      = 1.7320508075688767
+  asin(-1 / 2)     = -0.5235987755982988
+  acos(-sqrt(2)/2) = 2.356194490192345
+  atan(sqrt(3))    = 1.0471975511965979
+Using degrees:
+  sin(-30)         = -0.49999999999999994
+  cos(135)         = -0.7071067811865475
+  tan(60)          = 1.7320508075688767
+  asin(-1 / 2)     = -29.999999999999996
+  acos(-sqrt(2)/2) = 135
+  atan(sqrt(3))    = 60.00000000000001