This package includes several "constable math functions" that can be called at compile-time which dart:math mostly cannot, returning const double, and can be used as compile-time constants.

They are const constructors of extension type on double implements double, therefore can be used just like normal double, with almost 0 cost.

The package is seperated into 2 libraries, for older package:const_math/constmath.dart retain extension type syntax, while newer package:const_math/functions.dart ignored the camel_case_types lint rule to provide function-like syntax.

This package is and will not be optimized for run-time, for run time calculation, condider using 'dart:math' or other libraries.

Features

Constants

• ConstMath.pi()
• ConstMath.e()

Basic functions

• ConstMath.abs(num d)
• ConstMath.sgn(num d)
• ConstMath.min(num a, num b, [num c, num d, num e, num f, num g, num h, num i, num j])
• ConstMath.max(num a, num b, [num c, num d, num e, num f, num g, num h, num i, num j])
• ConstMath.degToRad(num d)
• ConstMath.radToDeg(num d)

Trigonometric functions

• ConstMath.sin(num d)
• ConstMath.cos(num d)
• ConstMath.tan(num d)
• ConstMath.cot(num d)
• ConstMath.sec(num d)
• ConstMath.csc(num d)

Log functions

• ConstMath.log(num d)
• ConstMath.log2(num d)
• ConstMath.log10(num d)

Exponent functions

• ConstMath.exp(num d)
• ConstMath.pow(num a, num b)

Inverse trigonometric functions

• ConstMath.asin(num d)
• ConstMath.acos(num d)
• ConstMath.atan(num d)
• ConstMath.atan2(num y, num x)

Root functions

• ConstMath.sqrt(num d)
• ConstMath.cbrt(num d)
• ConstMath.rt5(num d)
• ConstMath.rt7(num d)

Hyperbolic trigonometric funcions

• ConstMath.sinh(num d)
• ConstMath.cosh(num d)
• ConstMath.tanh(num d)
• ConstMath.coth(num d)
• ConstMath.sech(num d)
• ConstMath.coth(num d)

Error functions

• ConstMath.erf(num d)
• ConstMath.erfc(num d)

Getting started

In pubspec.yaml, add

dependencies:
  const_math: ^1.1.0

and run the pub get. In the place you wish to use these functions,

import 'package:const_math/const_math.dart';

Alternatively, if you prefer function-like syntax, you can add this:

import 'package:const_math/functions.dart';

This might conflict to dart:math library, add prefix if needed.

Usage

These are compile time math functions that dart math does not provide, implemented by extension type on double.

const mySinValue = ConstMath.sin(3);

Alternatively for using package:const_math/functions.dart library, you can use syntax like this:

const mySinValue = sin(3);

Additional information

If need support or to report bugs, email: const_math_support@worldoverwrite.com