More math opcode Fun. (0.37.43)

examples/math_cos.fun

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+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2026 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ *  Added: 2026-01-03
+ */
+
+// Demo of cos(x)
+
+print("=== math cos demo start ===")
+
+print("cos(0) -> " + to_string(cos(0)))
+print("cos(3.14159265359) ~ pi -> " + to_string(cos(3.14159265359)))
+print("cos(1.57079632679) ~ pi/2 -> " + to_string(cos(1.57079632679)))
+
+print("=== math cos demo end ===")
+
+/* Expected output (approximate):
+=== math cos demo start ===
+cos(0) -> 1
+cos(3.14159265359) ~ pi -> -1
+cos(1.57079632679) ~ pi/2 -> 0
+=== math cos demo end ===
+*/

examples/math_exp_log.fun

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+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2026 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ *  Added: 2026-01-03
+ */
+
+// Demo of exp(x), log(x), log10(x)
+
+print("=== math exp/log demo start ===")
+
+print("exp(0) -> " + to_string(exp(0)))
+print("log(1) -> " + to_string(log(1)))
+print("log10(1) -> " + to_string(log10(1)))
+print("exp(1) -> " + to_string(exp(1)))
+print("log(2.71828182846) ~ ln(e) -> " + to_string(log(2.71828182846)))
+
+print("=== math exp/log demo end ===")
+
+/* Expected output (approximate):
+=== math exp/log demo start ===
+exp(0) -> 1
+log(1) -> 0
+log10(1) -> 0
+exp(1) -> 2.718281828...
+log(2.71828182846) ~ ln(e) -> 1
+=== math exp/log demo end ===
+*/

examples/math_sin.fun

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+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2026 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ *  Added: 2026-01-03
+ */
+
+// Demo of sin(x)
+
+print("=== math sin demo start ===")
+
+print("sin(0) -> " + to_string(sin(0)))
+print("sin(1.57079632679) ~ pi/2 -> " + to_string(sin(1.57079632679)))
+print("sin(-1.57079632679) -> " + to_string(sin(-1.57079632679)))
+
+print("=== math sin demo end ===")
+
+/* Expected output (approximate):
+=== math sin demo start ===
+sin(0) -> 0
+sin(1.57079632679) ~ pi/2 -> 1
+sin(-1.57079632679) -> -1
+=== math sin demo end ===
+*/

examples/math_sqrt.fun

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+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2026 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ *  Added: 2026-01-03
+ */
+
+// Demo of sqrt(x)
+
+print("=== math sqrt demo start ===")
+
+print("sqrt(0) -> " + to_string(sqrt(0)))
+print("sqrt(9) -> " + to_string(sqrt(9)))
+print("sqrt(2) -> " + to_string(sqrt(2)))
+print("sqrt(-1) -> " + to_string(sqrt(-1)))  // NaN expected
+
+print("=== math sqrt demo end ===")
+
+/* Expected output (approximate):
+=== math sqrt demo start ===
+sqrt(0) -> 0
+sqrt(9) -> 3
+sqrt(2) -> 1.41421356...
+sqrt(-1) -> nan
+=== math sqrt demo end ===
+*/

examples/math_tan.fun

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+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2026 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ *  Added: 2026-01-03
+ */
+
+// Demo of tan(x)
+
+print("=== math tan demo start ===")
+
+print("tan(0) -> " + to_string(tan(0)))
+print("tan(0.78539816339) ~ pi/4 -> " + to_string(tan(0.78539816339)))
+
+print("=== math tan demo end ===")
+
+/* Expected output (approximate):
+=== math tan demo start ===
+tan(0) -> 0
+tan(0.78539816339) ~ pi/4 -> 1
+=== math tan demo end ===
+*/