Dangl.Calculator
1.0.5
Prefix Reserved
See the version list below for details.
dotnet add package Dangl.Calculator --version 1.0.5
NuGet\Install-Package Dangl.Calculator -Version 1.0.5
<PackageReference Include="Dangl.Calculator" Version="1.0.5" />
paket add Dangl.Calculator --version 1.0.5
#r "nuget: Dangl.Calculator, 1.0.5"
// Install Dangl.Calculator as a Cake Addin #addin nuget:?package=Dangl.Calculator&version=1.0.5 // Install Dangl.Calculator as a Cake Tool #tool nuget:?package=Dangl.Calculator&version=1.0.5
Dangl.Calculator
This calculator is using the ANTLR4 C# target to calculate results from formulas that are passed in as string.
Whenever a calculation is performed, a CalculationResult
is returned with the following properties:
Property | Type | |
---|---|---|
IsValid | bool | true if the formula could be parsed and calculated, else false |
ErrorPosition | int | Position of the offending symbol in the line, 0 based index, for invalid results, else null |
ErrorMessage | string | ANTLR error message for invalid formulas, else null |
Result | double | NaN for invalid formulas, else the actual result |
Installation
Install it via NuGet: Dangl.Calculator
CI builds are available via MyGet.
https://www.myget.org/F/dangl/api/v3/index.json
Compatibility
This project targets both netstandard1.1
and net45
. Due to .Net 4.5.2 being the currently latest supported version
by Microsoft and the xUnit test suite, no tests are run for net45
and net451
.
Project Configuration
If this project is consumed in a project using the full .Net framework with a newer version of
Antlr4.Runtime
, the necessary AssemblyBindingRedirects are not automatically generated with the current
dotnet CLI tooling. This is scheduled to be fixed with the 2.0 release. In the meantime, the following should
be added to the consumers csproj
:
<PropertyGroup Condition=" '$(TargetFramework)' == 'net461' ">
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
<GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
</PropertyGroup>
The Condition=" '$(TargetFramework)' == 'net461' "
attribute may be changed as necessary or removed.
Example
using Dangl.Calculator;
public void Example()
{
var formula = "5+5";
var calculation = Calculator.Calculate(formula);
Console.WriteLine(calculation.Result);
Console.WriteLine(calculation.IsValid);
// 10.0
// true
}
Supported functions
Expression | |
---|---|
FLOOR expression |
Round down to zero accuracy |
CEIL expression |
Round up to zero accuracy |
ABS expression |
Absolute value |
ROUNDK '(' expression ';' expression ')' |
Round expr_1 with expr_2 accuracy |
ROUND expression |
Round with zero accuracy |
TRUNC expression |
Trim decimal digits |
SIN expression |
Sinus |
COS expression |
Cosinus |
TAN expression |
Tangens |
COT expression |
Cotangens |
SINH expression |
Sinus Hypererbolicus |
COSH expression |
Cosinus Hyperbolicus |
TANH expression |
Tangens Hyperbolicus |
ARCSIN expression |
Inverse Sinus |
ARCCOS expression |
Inverse Cosinus |
ARCTAN expression |
Inverse Tangens |
ARCTAN2 '(' expression ';' expression ')' |
Atan2 |
ARCCOT expression |
Inverse Cotangens |
EXP expression |
e ^ expr |
LN expression |
Logarithm to e |
EEX expression |
10 ^ expr |
LOG expression |
Logarithm to 10 |
RAD expression |
Angle to radians (360° base) |
DEG expression |
Radians to angle (360° base) |
SQRT expression |
Square root |
SQR expression |
Square product |
expression op = ('^'\|'**') expression |
expr_1 to the expr_2 th power |
expression (MOD \| '%' ) expression |
Modulo |
expression DIV expression |
Whole part of division rest |
expression op = ('~'\|'//') expression |
expr_1 nth root of expr_2 |
expression op = ('*'\|'/') expression |
Multiplication or division |
expression op = ('+'\|'-') expression |
Addition or subtraction |
NUMBER |
Single integer or float number |
'(' expression ')' |
Expression within parentheses |
PI '()'? |
Mathematical constant pi = 3,141593 |
expression E+ expression |
Exponent, e.g. 10e+43 |
expression E- expression |
Inverted Exponent, e.g. 10e-43 |
EULER |
Mathematical constant e = 2,718282 |
'-' expression |
Unary minus sign (negative numbers) |
'+' expression |
Unary plus sign (positive numbers) |
expression may be any expression as functions can be nested. Example: DEG(2*PI)
or LOG(10^3)
.
Formulas can be case invariant, e.g. SIN
, sin
and siN
are all considered the same.
Comments in Formulas
Comments in Formulas are supported by encapsulating them either in /*...*/
, '...'
or "..."
quote styles. Examples:
4/*Length*/*3/*Width*/
resolves to 12
4'Length'*3'Width'
resolves to 12
4"Length"*3"Width"
resolves to 12
Product | Versions Compatible and additional computed target framework versions. |
---|---|
.NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. |
.NET Core | netcoreapp1.0 was computed. netcoreapp1.1 was computed. netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed. |
.NET Standard | netstandard1.1 is compatible. netstandard1.2 was computed. netstandard1.3 was computed. netstandard1.4 was computed. netstandard1.5 was computed. netstandard1.6 was computed. netstandard2.0 was computed. netstandard2.1 was computed. |
.NET Framework | net45 is compatible. net451 was computed. net452 was computed. net46 was computed. net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. |
MonoAndroid | monoandroid was computed. |
MonoMac | monomac was computed. |
MonoTouch | monotouch was computed. |
Tizen | tizen30 was computed. tizen40 was computed. tizen60 was computed. |
Universal Windows Platform | uap was computed. uap10.0 was computed. |
Windows Phone | wpa81 was computed. |
Windows Store | netcore was computed. netcore45 was computed. netcore451 was computed. |
Xamarin.iOS | xamarinios was computed. |
Xamarin.Mac | xamarinmac was computed. |
Xamarin.TVOS | xamarintvos was computed. |
Xamarin.WatchOS | xamarinwatchos was computed. |
-
.NETFramework 4.5
- Antlr4.Runtime (>= 4.6.4)
-
.NETStandard 1.1
- Antlr4.Runtime (>= 4.6.4)
- NETStandard.Library (>= 1.6.1)
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.
Version | Downloads | Last updated |
---|---|---|
2.2.0 | 41,334 | 11/15/2023 |
2.1.0 | 10,052 | 6/30/2023 |
2.0.0 | 15,145 | 1/4/2023 |
1.5.0 | 19,806 | 4/29/2022 |
1.4.0 | 23,679 | 1/23/2021 |
1.3.1 | 451 | 1/16/2021 |
1.3.0 | 468 | 1/15/2021 |
1.2.1 | 525 | 12/26/2020 |
1.2.0 | 22,155 | 8/5/2019 |
1.1.5 | 1,048 | 7/12/2019 |
1.1.4 | 1,684 | 3/8/2019 |
1.1.3 | 814 | 12/28/2018 |
1.1.2 | 890 | 10/19/2018 |
1.1.1 | 898 | 10/9/2018 |
1.1.0 | 896 | 9/15/2018 |
1.0.6 | 1,192 | 3/19/2018 |
1.0.5 | 1,801 | 12/15/2017 |
1.0.4 | 1,057 | 8/11/2017 |
1.0.3 | 1,182 | 12/5/2016 |
1.0.2 | 1,273 | 10/4/2016 |
1.0.1 | 1,145 | 9/25/2016 |
1.0.0 | 1,320 | 9/25/2016 |
1.0.5: Downgrade to netstandard1.1 and net45 for broader compatibility
1.0.4: Update ANTLR to latest version
1.0.3: Target NETStandard 1.3