# API services

MathType provides the following services:

• Generate images of formulas with the following formats: PNG, SVG, PDF, EPS, SWF.

• Convert MathML from/to LaTeX.

• Generate a textual representation of a formula for accessibility.

• Convert presentation MathML from/to content MathML.

• Provide a simple formula calculator. Works with floating point numbers. Not to be confused with Wiris CAS

There are mainly two interfaces to the services:

• Web service interface based on simple HTTP calls.

• Direct calls to a library, available as Java and .NET.

### Caution

Licensing note. It is important to read carefully the terms at the MathType store.

## Rendering images

MathType can generate images of formulas from Presentation MathML, Content MathML or LaTeX and export them to PNG, SWF, SVG, PDF and EPS.

### Web service

   http://domain/context-path/render


#### GET and POST parameters:

• mml: Presentation MathML or Content MathML that represents the formula.

• latex: LaTeX code that represents the formula.

• format: format of the image. Allowed values are png, swf, svg, pdf, and eps. If not specified, png is used.

• Parameters from this list.

#### Alternative services:

 http://domain/context-path/render.png

 http://domain/context-path/render.swf

 http://domain/context-path/render.svg

 http://domain/context-path/render.eps

 http://domain/context-path/render.pdf


When calling to render.png, render.swf, render.svg, render.eps, or render.pdf instead of render, format parameter is taken as png, swf, svg, eps, or pdf respectively.

### Java

Detailed information is available in the reference pages:

#### Example:

     Properties p = new Properties();
p.setProperty("color", "red");
Properties out = new Properties();
byte[] imageBytes = PublicServices.getInstance().renderPng(null, "2-x", p, out);
int width = Integer.parseInt(out.getProperty("width"));


### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

#### Example:

     Dictionary<string, string> p = new Dictionary<string, string>();
p["color"] = "red";
Dictionary<string, string> out = new Dictionary<string, string>();
byte[] imageBytes = PublicServices.getInstance().renderPng(null, "2-x", p, out);
int width = int.Parse(out["width"]);


## MathML

### Classic input coverage

MathType implements MathML 2.0 and 3.0

MathML coverage page

### Handwriting coverage

Handwriting coverage

### LaTeX to MathML

MathType provides a service to convert LaTeX code into Presentation MathML. The list of LaTeX commands currently supported by MathType, with examples, can be found here.

#### Web service

   http://domain/context-path/latex2mathml

##### GET and POST parameters:
• latex: LaTeX code that represents the formula.

• saveLatex: if defined, the LaTeX code is stored inside the result MathML as an annotation.

• grammar: the URL of the transformation grammar used to convert from LaTeX to MathML. If not specified, the default grammar is used.

#### Java

Detailed information is available in the reference page:

##### Example:
   String mathml = PublicServices.getInstance().latex2mathml("2-x", false, null);


Result:

$2-x$

#### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

##### Example:
   string mathml = PublicServices.getInstance().latex2mathml("2-x", false, null);


Result:

$2-x$

### MathML to LaTeX

MathType provides a service to convert Presentation MathML into LaTeX code. The list of MathML commands currently supported by MathType, with examples, can be found here.

#### Web service

   http://domain/context-path/mathml2latex

##### GET and POST parameters:
• mml: Presentation MathML that represents the formula.

• saveMathML: if defined, the MathML is stored inside the result LaTeX code as a comment.

• grammar: the URL of the transformation grammar used to convert from MathML to LaTeX. If not specified, the default grammar is used.

#### Java

Detailed information is available in the reference page:

##### Example:
   String latex = PublicServices.getInstance().mathml2latex("$<mn>2</mn><mo>-</mo><mi>x</mi>$", false, null);


Result:

$2-x$

#### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

##### Example:
   String latex = PublicServices.getInstance().mathml2latex("$<mn>2</mn><mo>-</mo><mi>x</mi>$", false, null);


Result:

$2-x$

### LaTeX coverage

LaTex is a ocean of options; we offer a subset of it.

### Content MathML to Presentation MathML

MathType provides a service to convert Content MathML into Presentation MathML. The list of Content MathML tags currently supported by MathType can be found here.

#### Web service

   http://domain/context-path/content2mathml

##### GET and POST parameters:
• mml: Content MathML that represents the formula.

• grammar: the URL of the transformation grammar used to convert from Content MathML to Presentation MathML. If not specified, the default grammar is used.

##### Examples:
  https://www.wiris.net/demo/editor/content2mathml?mml=%3Cmath%3E%3Capply%3E%3Cminus%3E%3C/minus%3E%3Ccn%3E2%3C/cn%3E%3Cci%3Ex%3C/ci%3E%3C/apply%3E%3C/math%3E


#### Java

Detailed information is available in the reference page:

##### Example:
   String mathml = PublicServices.getInstance().content2mathml("$<apply><minus></minus><cn>2</cn><ci>x</ci></apply>$", null);


Result:

   $<mn>2</mn><mo>-</mo><mi>x</mi>$


#### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

##### Example:
   string mathml = PublicServices.getInstance().content2mathml("$<apply><minus></minus><cn>2</cn><ci>x</ci></apply>$", null);


Result:

   $<mn>2</mn><mo>-</mo><mi>x</mi>$


### Presentation MathML to Content MathML

MathType provides a service to convert Presentation MathML into Content MathML. The list of Presentation MathML tags currently supported by MathType can be found here.

#### Web service

   http://domain/context-path/mathml2content

##### GET and POST parameters:
• mml: Presentation MathML that represents the formula.

• grammar: the URL of the transformation grammar used to convert from Presentation MathML to Content MathML. If not specified, the default grammar is used.

#### Java

Detailed information is available in the reference page:

##### Example:
   String mathml = PublicServices.getInstance().mathml2content $<mn>2</mn><mo>-</mo><mi>x</mi>$ ", null);


Result:

   $<apply><minus></minus><cn>2</cn><ci>x</ci></apply>$


#### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

##### Example:
   string mathml = PublicServices.getInstance().mathml2content $<mn>2</mn><mo>-</mo><mi>x</mi>$ ", null);


Result:

   $<apply><minus></minus><cn>2</cn><ci>x</ci></apply>$


### Accessible text to MathML

MathType provides a service to convert accessible textual representations into Presentation MathML.

#### Web service

   http://domain/context-path/accessible2mathml

##### GET and POST parameters:
• accessible: text represents the formula.

• lang: language code in ISO 639 format (“en”, “es”, etc).

#### Java

Detailed information is available in the reference page:

##### Example:
   String mathml = PublicServices.getInstance().accessible2mathml("2 minus x", "en", null);


Result:

   <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><mo>-</mo><mi>x</mi>[/itex]


#### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

##### Example:
   string mathml = PublicServices.getInstance().accessible2mathml("2 minus x", "en", null);


Result:

   <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><mo>-</mo><mi>x</mi>[/itex]


### MathML to accessible text

MathType provides a service to convert Presentation MathML into accessible text.

#### Web service

   http://domain/context-path/mathml2accessible

##### GET and POST parameters:
• mml: Presentation MathML that represents the formula.

• lang: language code in ISO 639 format (“en”, “es”, etc).

#### Java

Detailed information is available in the reference page:

##### Example:
   String accessible = PublicServices.getInstance().mathml2accessible("$<mn>2</mn><mo>-</mo><mi>x</mi>$", "en", null);


Result:

2 minus x

#### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

##### Example:
   string accessible = PublicServices.getInstance().mathml2accessible("$<mn>2</mn><mo>-</mo><mi>x</mi>$", "en", null);


Result:

2 minus x

### Comparing equations

MathType provides a service to compare two MathML equations. The resulting equation will have the missing parts from the "before" equation highlighted in red and the added ones in the "after" equation in green. The MathML will also include the "before" and "after" equations as annotations.

#### Web service

   http://domain/context-path/compare

##### POST parameters
• before: equation to compare

• after: equation to compare

• format: format used by the equations. The only accepted value is 'mathml'. Defaults to 'mathml' if not set.

##### Examples:

Given the following MathML equations:

 before: <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>1</mn><mo>+</mo><mfrac><mrow><mn>3</mn><msup><mi>x</mi><mn>2</mn></msup></mrow><mn>2</mn></mfrac>[/itex]

 after: <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>3</mn><msup><mi>y</mi><mn>2</mn></msup></mrow><mi mathvariant="normal">&#x3C0;</mi></mfrac><mo>+</mo><mn>1</mn>[/itex]


the service will return a combination of both equations styled in red and green as the rules above explain.

### Evaluating formulas

MathType can evaluate Presentation MathML or Content MathML to a floating point value. It admits a list of variable values that will be replaced before the evaluation. There is more information about this feature here.

The list of Content MathML tags currently supported by MathType can be found here.

#### Web service

   http://domain/context-path/evaluate

##### GET and POST parameters:
• mml: Presentation MathML or Content MathML that represents the formula.

• Parameters starting with “var_”, to define variable values. Example: “var_x=4.5”.

#### Java

Detailed information is available in the reference page:

##### Example:
     Properties variables = new Properties();
variables.setProperty("x", "4.5");
double result = PublicServices.getInstance().evaluate("$<mn>2</mn><mo>-</mo><mi>x</mi>$", variables, null);


Result:

-2.5

#### .NET

Detailed information is available in the reference page (although the documentation itself is a Javadoc):

PublicServicesInterface.evaluate

##### Example:
     Dictionary<string, string> variables = new Dictionary<string, string>();
variables["x"] = "4.5";
double result = PublicServices.getInstance().evaluate("$<mn>2</mn><mo>-</mo><mi>x</mi>$", variables, null);


Result:

-2.5

#### Coverage evaluation

the symbols appearing in the toolbar are the only ones that can be evaluated. Some extra simbols like || for absolute value.

### Error handling

All services now accept these request parameters:

httpstatus: If true then the service will return HTTP status code 5xx on error. Otherwise, if not defined or false, the service does not label errors; always returns HTTP status code 200.