This is easy to use and free numerical .NET library that can compute text math formulas input. This library also include functions able to compute mean and proportion.

### Try Calculator Online

Result:

### NuGet

Library can be also downloaded from nuget### Features

You can try Mean and Proportion functionality below.Functions which library can handle:

- Sine = sin
- Hyperbolic sine = sinh
- Cosine = cos
- Hyperbolic cosine = cosh
- Tangent = tg, tan
- Hyperbolic tangent = tgh, tanh
- Cotangent = ctg, ctn, cot
- Hyperbolic cotangent = ctgh, ctnh, coth
- Secant = sec
- Cosecant = csc
- Arcsine = asin
- Arccosine = acos
- Arctangent = atg
- Arccotangent = actg
- Exponential function with e base = exp
- Square root = sqrt
- Base 2 logarithm = lg
- Base e logarithm = ln
- Base 10 logarithm = log

5! = 1*2*3*4*5

Factorial of real numbers and natural numbers greater than 19 is gamma function.

You can use sinx instead of sin(x) but it's not recommended - in some cases it can affect the result.

For example sinx+2 is sin(x)+2 not sin(x+2).

In formulas you can use PI and E. PI will be calculated as 3.14159265358979,

and E as 10 raised to the power of that what is after E.

For example: E-05 = 10^(-5)

Spaces in formulas are ignored.

Application can't compute imaginary numbers. If during computations

Numerical Calculator encounter imaginary numbers it will return "not a number" result.

You can input nested expressions like sin(cos(30)+tg(sqrt(0,4)))

### Algorithm

Library uses reverse polish notation to understand formulas. It splits input into separate functions then taking into account order of operations reorder them and computes.### Usage

string formula = "5^3/4+cos(20)*(tgh(10)-exp(3))";

Calculator calc = new Calculator(formula);

double result = calc.Compute();

### Example application

Download: here

### License

MIT License### Source code

Can be found on GitHub### Try Mean And Proportion Online

#### Mean

Result:

#### Proportion

Result: