### Math functions examples

Source: https://github.com/devexpress/dotnet-eud/blob/2026.1/eud-for-devexpress-reports/reporting-for-desktop/report-designer/report-designer-for-winforms/use-expressions/functions-in-expressions.md

Examples for each math function listed in the table, showing usage with typical arguments.

```plaintext
Abs(1 - [Discount])
```

```plaintext
Acos([Value])
```

```plaintext
Asin([Value])
```

```plaintext
Atn([Value])
```

```plaintext
Atn2([Value1], [Value2])
```

```plaintext
BigMul([Amount], [Quantity])
```

```plaintext
Ceiling([Value])
```

```plaintext
Cos([Value])
```

```plaintext
Cosh([Value])
```

```plaintext
Exp([Value])
```

```plaintext
Floor([Value])
```

```plaintext
Log([Value])
```

```plaintext
Log([Value], 2)
```

```plaintext
Log10([Value])
```

```plaintext
Max([Value1], [Value2])
```

```plaintext
Min([Value1], [Value2])
```

```plaintext
Power([Value], 3)
```

```plaintext
Rnd()*100
```

```plaintext
Round([Value])
```

```plaintext
Round([Value], 2)
```

```plaintext
Sign([Value])
```

```plaintext
Sin([Value])
```

```plaintext
Sinh([Value])
```

```plaintext
Sqr([Value])
```

```plaintext
Tan([Value])
```

```plaintext
Tanh([Value])
```

```plaintext
ToDecimal([Value])
```

```plaintext
ToDouble([Value])
```

```plaintext
ToFloat([Value])
```

```plaintext
ToInt([Value])
```

```plaintext
ToLong([Value])
```

--------------------------------

### String function examples

Source: https://github.com/devexpress/dotnet-eud/blob/2026.1/eud-for-devexpress-reports/reporting-for-desktop/report-designer/report-designer-for-winforms/use-expressions/functions-in-expressions.md

Examples of string functions used in expressions.

```text
Ascii('a')
```

```text
Char(65) + Char(51)
```

```text
CharIndex('e', 'devexpress')
```

```text
CharIndex('e', 'devexpress', 2)
```

```text
Concat('A', ')', [ProductName])
```

```text
Contains([ProductName], 'dairy')
```

```text
EndsWith([Description], 'The end.')
```

```text
Insert([Name], 0, 'ABC-')
```

```text
Len([Description])
```

```text
Lower([ProductName])
```

```text
PadLeft([Name], 30)
```

```text
PadLeft([Name], 30, '<')
```

```text
PadRight([Name], 30)
```

```text
PadRight([Name], 30, '>')
```

```text
Remove([Name], 3)
```

```text
Remove([Name], 0, 3)
```

```text
Replace([Name], 'The ', '')
```

```text
Reverse([Name])
```

```text
StartsWith([Title], 'The best')
```

```text
Substring([Description], 2, 3)
```

```text
Substring([Description], 2)
```

```text
ToStr([ID])
```

```text
Trim([ProductName])
```

```text
Upper([ProductName])
```

--------------------------------

### Comment syntax in expressions

Source: https://github.com/devexpress/dotnet-eud/blob/2026.1/eud-for-devexpress-reports/reporting-for-desktop/report-designer/report-designer-for-winforms/use-expressions/expression-language.md

Comments start with /* and end with */. This example shows a multi-line comment inside an expression.

```plaintext
/*
This is a comment within an expression.
*/
```

--------------------------------

### Build and serve documentation with docfx build

Source: https://github.com/devexpress/dotnet-eud/blob/2026.1/README.md

Build the documentation with DocFX and serve it locally at http://localhost:8080. Output is placed in the _site folder.

```bash
docfx build D:/dotnet-eud/docfx.json --serve
```

--------------------------------

### Criteria Constant Examples

Source: https://github.com/devexpress/dotnet-eud/blob/2026.1/eud-for-bi-dashboard/dashboard-for-desktop/dashboard-designer/ui-elements/expression-editor/expression-operators-functions-and-constants.md

Examples of constant syntax in criteria expressions: string constants in apostrophes, doubled apostrophes for embedded quotes, date-time constants in #, Boolean True/False, null reference ?, enumeration as integer, Guid in curly braces, and numeric with suffix (m for decimal).

```text
[Country] == 'France'
```

```text
[Name] == 'O''Neil'
```

```text
[OrderDate] >= #1/1/2009#
```

```text
[InStock] == True
```

```text
[InStock] == False
```

```text
[Region] != ?
```

```text
[Status] == 1
```

```text
[OrderID] == {513724e5-17b7-4ec6-abc4-0eae12c72c1f}
```

```text
[Price] == 25.0m
```

--------------------------------

### Install DocFX with dotnet tool update

Source: https://github.com/devexpress/dotnet-eud/blob/2026.1/README.md

Install the latest DocFX as a global .NET tool. Requires .NET SDK 6.0 or higher.

```bash
dotnet tool update -g docfx
```

--------------------------------

### NewLine() function example

Source: https://github.com/devexpress/dotnet-eud/blob/2026.1/eud-for-devexpress-reports/reporting-for-desktop/report-designer/report-designer-for-winforms/use-expressions/functions-in-expressions.md

Returns the newline string defined for the current environment. The example concatenates a category name, a newline, and a description, showing the resulting multi-line output.

```text
[CategoryName]+NewLine()+[Description]
/*
Result:
Beverages
Soft drinks, coffees, teas, beers and ales.
/*

```