sin (clj)

function

(sin a)

Returns the sine of an angle. If a is ##NaN, ##-Inf, ##Inf => ##NaN If a is zero => zero with the same sign as a See: https://docs.oracle.com/javase/8/docs/api/java/lang/Math.html#sin-double-

Examples

clojure

(ns clojure.test-clojure.math
  (:require
    [clojure.test :refer :all]
    [clojure.math :as m]))

(deftest test-sin
  (is (NaN? (m/sin ##NaN)))
  (is (NaN? (m/sin ##-Inf)))
  (is (NaN? (m/sin ##Inf)))
  (is (pos-zero? (m/sin 0.0)))
  (is (neg-zero? (m/sin -0.0)))
  (is (ulp= (m/sin m/PI) (- (m/sin (- m/PI))) 1)))

(deftest test-asin
  (is (NaN? (m/asin ##NaN)))
  (is (NaN? (m/asin 2.0)))
  (is (NaN? (m/asin -2.0)))
  (is (zero? (m/asin -0.0))))

(deftest test-sinh
  (is (NaN? (m/sinh ##NaN)))
  (is (= ##Inf (m/sinh ##Inf)))
  (is (= ##-Inf (m/sinh ##-Inf)))
  (is (= 0.0 (m/sinh 0.0))))