math.js web service
math.js is available as a RESTful API. Evaluations can be done via GET or POST requests. The duration per evaluation of this free service is limited to 10 seconds, with a maximum of 10,000 requests per day.
GET
HTTP Request
GET http://api.mathjs.org/v4/Query parameters
| Name | Type | Required | Description |
|---|---|---|---|
| expr | string | yes | The expression to be evaluated. The expression must be url encoded. |
| precision | number | no | Number of significant digits in formatted output. Undefined by default. |
Response
On success, the response will have status 200 and the body contains the result of the expression. On failure, the response will have status 400 with an error message in the body.Examples
- http://api.mathjs.org/v4/?expr=2*(7-3)
- http://api.mathjs.org/v4/?expr=2%2F3
- http://api.mathjs.org/v4/?expr=2%2F3&precision=3
Try it
| Expression | |
|---|---|
| Url | loading... |
POST
HTTP Request
POST http://api.mathjs.org/v4/Headers
Must contain the following header:
content-type: application/json
Request Body
The request body must contain a JSON Object with the following fields:
| Name | Type | Required | Description |
|---|---|---|---|
| expr | string or string[] | yes | A string containing the expression to be evaluated, or an array with strings to be evaluated |
| precision | number | no | Number of significant digits in formatted output. Undefined by default. |
Response
The response is a JSON object containing the following fields:
| Name | Type | Description |
|---|---|---|
| result | string, string[], or null | On success, the field result contains a string with the results of the expression. If an array with expressions was provided, the result will be a an array with a string for each expression. On failure, result will be null. |
| error | string or null | On failure, error will contain an error message. On success, error will be null. |