# Add Math Equations to PowerPoint Presentations in .NET

> Insert and edit math equations in PowerPoint PPT and PPTX with Aspose.Slides for .NET, supporting OMML, formatting controls, and clear C# code samples.

Source: https://docs.aspose.com/slides/net/powerpoint-math-equations/
Updated: 2026-08-05


## **Overview**

PowerPoint stores equations as Office Math Markup Language (OMML). With Aspose.Slides for .NET, you can create the same kind of math content programmatically: fractions, radicals, functions, limits, N-ary operators, matrices, arrays, and formatted math blocks.

In PowerPoint, users normally add equations from **Insert > Equation**:

![PowerPoint Insert tab with the Equation command selected](powerpoint-math-equations_1.png)

The result is editable math text on the slide:

![A PowerPoint slide containing an editable math equation](powerpoint-math-equations_2.png)

Aspose.Slides builds that math text through three main objects:

- A math shape, created with [AddMathShape](https://reference.aspose.com/slides/net/aspose.slides/ishapecollection/addmathshape/), is the shape that contains the equation.
- [MathPortion](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathportion/) stores math content inside the shape text frame.
- [MathParagraph](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathparagraph/) contains one or more [MathBlock](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathblock/) objects.

Most examples below use [MathematicalText](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathematicaltext/) and the fluent methods from [IMathElement](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/) to keep the code short and readable.

For MathML export scenarios, see [Export Math Equations from Presentations in .NET](/slides/net/exporting-math-equations/).

## **Create an Equation**

This example creates a math shape and adds the Pythagorean theorem:

![The equation c squared equals a squared plus b squared](powerpoint-math-equations_3.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 120);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var equation = new MathematicalText("c")
    .SetSuperscript("2")
    .Join("=")
    .Join(new MathematicalText("a").SetSuperscript("2"))
    .Join("+")
    .Join(new MathematicalText("b").SetSuperscript("2"));

mathParagraph.Add(equation);

presentation.Save("pythagorean-theorem.pptx", SaveFormat.Pptx);
```

{{% alert color="primary" %}}

`AddMathShape` creates a shape that already contains a math paragraph. Access the first `MathPortion`, get its `MathParagraph`, and add math blocks or math elements to it.

{{% /alert %}}

## **Add Fractions**

Use `Divide` to create a fraction. You can choose a fraction style with [MathFractionTypes](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathfractiontypes/).

![A skewed math fraction showing one divided by x](powerpoint-math-equations_4.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var fraction = new MathematicalText("1")
    .Divide("x", MathFractionTypes.Skewed);

mathParagraph.Add(new MathBlock(fraction));

presentation.Save("fraction.pptx", SaveFormat.Pptx);
```

For a stacked fraction, use `MathFractionTypes.Bar`:

```csharp
using Aspose.Slides.MathText;

var stackedFraction = new MathematicalText("x + 1").Divide("y - 1", MathFractionTypes.Bar);
```

## **Add Radicals**

Use `Radical` to create a square root, cube root, or other root. The current element becomes the base, and the argument becomes the degree.

![An n-th root radical expression with x under the radical sign](powerpoint-math-equations_5.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var radical = new MathematicalText("x")
    .Radical("n");

mathParagraph.Add(new MathBlock(radical));

presentation.Save("radical.pptx", SaveFormat.Pptx);
```

## **Add Functions and Limits**

Use `AsArgumentOfFunction` or `Function` for functions such as `sin(x)`, `log(x)`, or custom function names. For limits, put `lim` in a [MathLimit](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathlimit/) or use `SetLowerLimit`.

![The limit of x as x approaches infinity](powerpoint-math-equations_8.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var limit = new MathematicalText("lim")
    .SetLowerLimit("x→∞")
    .Function("x");

mathParagraph.Add(new MathBlock(limit));

presentation.Save("functions-and-limits.pptx", SaveFormat.Pptx);
```

For a custom function name, make the function name the current element:

```csharp
using Aspose.Slides.MathText;

var customFunction = new MathematicalText("f").Function("x + 1");
```

## **Add N-ary Operators and Integrals**

Use `Nary` for summations, unions, intersections, and other large operators. Use `Integral` for integrals. Both methods let you set lower and upper limits.

![A summation with lower and upper limits](powerpoint-math-equations_7.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 120);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var summationBase = new MathematicalText("x")
    .SetSuperscript("k")
    .Join(new MathematicalText("a").SetSuperscript("n-k"));

var summation = summationBase.Nary(MathNaryOperatorTypes.Summation, "k=0", "n");

mathParagraph.Add(new MathBlock(summation));

presentation.Save("nary-operators.pptx", SaveFormat.Pptx);
```

N-ary operators are for large operators with optional limits. Simple operators such as `+`, `-`, and `=` are usually added as `MathematicalText` and joined into the expression.

For an integral, use `Integral`:

```csharp
using Aspose.Slides.MathText;

var integralBase = new MathematicalText("x").Join(new MathematicalText("dx").ToBox());
var integral = integralBase.Integral(MathIntegralTypes.Simple, "0", "1");
```

## **Add Matrices**

Use [MathMatrix](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathmatrix/) for rows and columns. Matrices do not include brackets by default, so enclose the matrix when you need parentheses, brackets, or braces.

![A two-row math matrix with one empty cell](powerpoint-math-equations_10.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 120);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var matrix = new MathMatrix(2, 3);
matrix[0, 0] = new MathematicalText("1");
matrix[0, 1] = new MathematicalText("x");
matrix[1, 0] = new MathematicalText("x");
matrix[1, 1] = new MathematicalText("2");
matrix[1, 2] = new MathematicalText("y");

mathParagraph.Add(new MathBlock(matrix));

presentation.Save("matrix.pptx", SaveFormat.Pptx);
```

## **Add Equation Arrays**

Use `ToMathArray` when you need aligned equations or a vertical stack of expressions.

![A vertical math array with x above y](powerpoint-math-equations_11.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 140);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var equationArray = new MathematicalText("x")
    .Join("y")
    .ToMathArray();

mathParagraph.Add(new MathBlock(equationArray));

presentation.Save("equation-array.pptx", SaveFormat.Pptx);
```

## **Add Trigonometric Functions**

Use `AsArgumentOfFunction` when the argument is the current element and the function name is known.

![The trigonometric function cos applied to 2x](powerpoint-math-equations_6.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var cosine = new MathematicalText("2x")
    .AsArgumentOfFunction(MathFunctionsOfOneArgument.Cos);

mathParagraph.Add(new MathBlock(cosine));

presentation.Save("trigonometric-function.pptx", SaveFormat.Pptx);
```

## **Add Subscripts and Superscripts**

Use the subscript and superscript helpers for indexes and powers. When the indexes must appear on the left side of the base, use `SetSubSuperscriptOnTheLeft`.

![A capital Y with left-side subscript 1 and superscript n](powerpoint-math-equations_9.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var scripts = new MathematicalText("Y")
    .SetSubSuperscriptOnTheLeft("1", "n");

mathParagraph.Add(new MathBlock(scripts));

presentation.Save("subscript-superscript.pptx", SaveFormat.Pptx);
```

## **Add Delimiters**

Use `Enclose` to put an expression inside delimiters. You can also set a separator character for delimiter expressions that contain several elements.

![A delimiter expression containing x, y, and z separated by vertical bars](powerpoint-math-equations_13.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var delimiter = new MathematicalText("x")
    .Join("y")
    .Join("z")
    .Enclose('<', '>');
delimiter.SeparatorCharacter = '|';

mathParagraph.Add(new MathBlock(delimiter));

presentation.Save("delimiters.pptx", SaveFormat.Pptx);
```

## **Add a Border Box**

Use `ToBorderBox` when the equation itself should be framed.

![A boxed equation showing a squared equals b squared plus c squared](powerpoint-math-equations_12.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var boxedEquation = new MathematicalText("a")
    .SetSuperscript("2")
    .Join("=")
    .Join(new MathematicalText("b").SetSuperscript("2"))
    .Join("+")
    .Join(new MathematicalText("c").SetSuperscript("2"))
    .ToBorderBox();

mathParagraph.Add(new MathBlock(boxedEquation));

presentation.Save("border-box.pptx", SaveFormat.Pptx);
```

## **Group Terms**

Use `Group` to place a grouping character above or below an expression. Add a limit to label the grouped terms.

![The expression x plus y grouped with the label any text below it](powerpoint-math-equations_15.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 120);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var grouped = new MathematicalText("x + y")
    .Group('\u23DF', MathTopBotPositions.Bottom, MathTopBotPositions.Top)
    .SetLowerLimit("any text");

mathParagraph.Add(new MathBlock(grouped));

presentation.Save("grouped-terms.pptx", SaveFormat.Pptx);
```

## **Format Math Elements**

Use formatting helpers only where they clarify the formula. For example, `Overbar` places a bar above a math element.

![A math expression ABC with an overbar](powerpoint-math-equations_14.png)

```csharp
using Aspose.Slides;
using Aspose.Slides.Export;
using Aspose.Slides.MathText;

using var presentation = new Presentation();
var slide = presentation.Slides[0];

var mathShape = slide.Shapes.AddMathShape(20, 20, 700, 100);
var mathParagraph = ((MathPortion)mathShape.TextFrame.Paragraphs[0].Portions[0]).MathParagraph;

var overbar = new MathematicalText("ABC").Overbar();

mathParagraph.Add(new MathBlock(overbar));

presentation.Save("overbar.pptx", SaveFormat.Pptx);
```

## **Quick Reference**

| Task | Main API |
| --- | --- |
| Create math text | [MathematicalText](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathematicaltext/) |
| Combine elements | [IMathElement.Join](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/join/) |
| Create fractions | [IMathElement.Divide](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/divide/) |
| Add superscript or subscript | [SetSuperscript](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/setsuperscript/), [SetSubscript](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/setsubscript/) |
| Add functions | [Function](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/function/), [AsArgumentOfFunction](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/asargumentoffunction/) |
| Add radicals | [IMathElement.Radical](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/radical/) |
| Add limits | [SetLowerLimit](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/setlowerlimit/), [SetUpperLimit](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/setupperlimit/) |
| Add left-side scripts | [SetSubSuperscriptOnTheLeft](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/setsubsuperscriptontheleft/) |
| Add summations and integrals | [Nary](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/nary/), [Integral](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/integral/) |
| Add matrices | [MathMatrix](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathmatrix/) |
| Add equation arrays | [ToMathArray](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/tomatharray/) |
| Add delimiters | [Enclose](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/enclose/) |
| Add bars and borders | [Overbar](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/overbar/), [ToBorderBox](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/toborderbox/) |
| Group terms | [Group](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathelement/group/) |

## **FAQ**

**Can I edit an existing PowerPoint equation?**

Yes. Open the presentation, find the shape that contains a `MathPortion`, get its `MathParagraph`, and update the math blocks in that paragraph.

**Are equations saved as editable PowerPoint math?**

Yes. When you save to PPTX, Aspose.Slides writes the equation as editable Office math content.

**Can I export equations to LaTeX?**

Yes. Get the equation's [IMathParagraph](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathparagraph/) from its [MathPortion](https://reference.aspose.com/slides/net/aspose.slides.mathtext/mathportion/), and call [IMathParagraph.ToLatex](https://reference.aspose.com/slides/net/aspose.slides.mathtext/imathparagraph/tolatex/) to export it directly. For a complete example, see [Export Math Equations from Presentations in .NET](/slides/net/exporting-math-equations/#export-math-equations-to-latex).