Rust Simple Calculator

Simple calculator written in Rust. Supports many arithmetic functions, boolean logic, and builtin functions.

Value types

The calculator supports four value types:

• Booleans (true and false)
• Numbers (examples: 1, 3.2, -200, 1.3333, 1e-3, 0xFFFFF, 0b010011, 0o777)
  • number support radix 2 (binary), 8 (octal), and 16 (hex)

Arithmetic Options

Supports the following operations:

• Arithmetic
  • Addition: a + b
  • Subtraction: a - b
  • Multiplication: a * b
  • Division: a / b
  • Rem / Module: a % b
  • BitAnd: a & b
  • BitOr: a | b
  • BitXor: a ^ b
  • Shr: a >> b
  • Shl: a << b
• Relational
  • Equal: a == b, a != b
  • Compare: a < b, a <= b, a > b, a >= b
• Logic

  • Conjunction: a and b

  • Disjunction: a or b

  • Negation: not a

TODO!

Predefined constants and functions.

• [] Supports the following constants.

  • pi
  • tau
  • e
  • nan
  • inf
  • neginf

• [] The following common mathematical functions are supported.

  • sin(x), cos(x), tan(x)
  • asin(x), acos(x), atan(x)
  • ln(x), log10(x), log2(x), log(x, base)
  • round(x), floor(x), ceil(x)
  • sqrt(x), exp(x), powf(x, e), pow(x, e)
  • abs(x), min_num(x, y), max_num(x, y)

• [] The following Python-like utility functions are included.

  • min(...): minimum of arguments.
  • max(...): maximum of arguments.
  • rand(), rand(stop), rand(start, stop): random float (default range is 0.0 to 1.0).

• [] The following common printing functions to stdout/stderr are supported.

  • print(value): print to stdout
  • println(value): print to stdout with new line at the end
  • eprint(value): print to stderr
  • eprintln(value): print to stderr with new line at the end
  • debug(expr): print debug representation for expression

• [] The following common format number functions.

  • bin(value, _bool): format number as string in binary format (0b111)
  • oct(value, _bool): format number as string in octal format (0o777)
  • hex(value, _bool): format number as string in hex format (0xFFF)