Add CHANGELOG.md

CHANGELOG.md

@@ -0,0 +1,32 @@
+# Change Log
+
+## 1.0.0 (2019-02-27)
+
+**jMath** is a mathematical library to evaluate complicated expression written as a `string`. Main features:
+  - Expressions are stored as `Abstract Syntax Tree` so the expression can be evaluated many times without re-parsing.
+  - Expressions can contains variables.
+  - Support for custom function and operators.
+  - Functions can be overloaded (resolver chooses function by number of arguments).
+  - Functions can takes variable number of arguments (variadic functions).
+  - Expressions can be optimized by optimization passes.
+  - Support for custom optimization passes.
+
+Library contains set of built-in:
+  - Constants:
+    - numeric: `pi`, `e`, `inf`,
+    - logical: `true`, `false`,
+  - Operators:
+    - arithmetic: `+`, `-`, `*`, `/`, `^` (power), `-` (negation),
+    - comparators: `=`, `<>`, `<`, `>`, `<=`, `>=`,
+    - logical: `not`, `or`, `and`, `xor`, `nor`, `nand`, `<=>` (iff), `=>` (consequence),
+    - other: `%` (percentage), `mod` (modulo),
+  - Functions:
+    - basic: `pow`, `sqrt`, `root`, `exp`, `log`, `log2`, `log10`, `abs`, `floor`, `ceil`, `round`, `clamp`, `sgn`, `indicator`,
+    - trigonometric: `sin`, `cos`, `tan`, `asin`, `acos`, `atan`, `atan2`, `sinh`, `cosh`, `tanh`,
+    - statistical: `min`, `max`, `mean`, `stddev`, `median`,
+    - random: `rand` (uniform), `nrand` (normal),
+    - conversion: `to_degrees`, `to_radians`, `to_logical`,
+    - compound: `gcd`, `lcm`, `factorial`, `fib`, `lagrange`, `poly`,
+  - Optimization passes:
+    - BinaryOperatorSimplifying,
+    - ConstantFolding,

README.md

@@ -28,11 +28,11 @@ Library contains set of built-in:
     - trigonometric: `sin`, `cos`, `tan`, `asin`, `acos`, `atan`, `atan2`, `sinh`, `cosh`, `tanh`,
     - statistical: `min`, `max`, `mean`, `stddev`, `median`,
     - random: `rand` (uniform), `nrand` (normal),
-    - conversion: `to_degrees`, `to_radians`, `to_logical`
-    - compound: `gcd`, `lcm`, `factorial`, `fib`, `lagrange`, `poly`
+    - conversion: `to_degrees`, `to_radians`, `to_logical`,
+    - compound: `gcd`, `lcm`, `factorial`, `fib`, `lagrange`, `poly`,
   - Optimization passes:
-    - BinaryOperatorSimplifying
-    - ConstantFolding
+    - BinaryOperatorSimplifying,
+    - ConstantFolding,
 
 ## Built-in operators