---
title: "A+B (LMATH)"
slug: "ab-dmath"
updated: 2022-10-10T13:12:23Z
published: 2022-10-10T13:12:23Z
canonical: "docs.datajet.app/ab-dmath"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.datajet.app/llms.txt
> Use this file to discover all available pages before exploring further.

# A+B (LMATH)

## LMath: A+B

## Adds the value of integer portion of Input A to the value of integer portion of Input B

## Purpose

Use this function to:

- Sum numeric data
- Add values from numeric columns together
- Increment a column by a fixed value

## Return Value

| Property | Value |
| --- | --- |
| **FieldType** | Integer |
| **FieldSize** | Low / Med / High / Continuous |
| **DataType** | Discrete / Continuous |
| **DataSize** | Short / Integer |

```shell
Example Return Value: X*...-X*

e.g.  21, 98754654, -5, -654
```

![AplusB_Sample](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/AplusB_Sample.PNG)

## Parameters

| Parameter | JSON | Description |
| --- | --- | --- |
| **Table** | “targetTable”: “MyTableName” | The target table on which the new field will be created |
| **Filter** | “dataset”: {DataSet_JSON} | Optional. If a filter is applied, records not in the filter recordset will be returned as null. |
| **Math** **Function** | “p1”: “A+B” | A+B |
| **A** | “p2”: “NumericFieldName” “p2”: “#N*.N*” “p3”: “#-N*.N*” | Required. *Supports:* - **DataType:** Discrete / Continuous - **Field Type:** Integer, Double - **Fixed Value:** #N* e.g. #201596, #-87 - **Fixed Value:** #N*.N* e.g. #201596.05, #-87.98 |
| **B** | “p3”: “NumericFieldName” “p3”: “#N*.N*” “p3”: “#-N*.N*” | Required. *Supports:* - **DataType:** Discrete / Continuous - **Field Type:** Integer, Double - **Fixed Value:** #N* e.g. #201596, #-87 - **Fixed Value:** #N*.N* e.g. #201596.05, #-87.98 |
| **Treat Null as Zero** | "nullIsZero": true "nullIsZero": false | True/False. Default = False If true, then any null values in the input fields will be treated as if they have a value of 0. |

## JSON Sample

```json
{
  "method": "BuildBakedField",
  "project": "Model1",
  "targetTable": "WHOLESALE",
  "overwrite": true,
  "name": "Fresh n Milk",
  "function": "lmath",
  "p1": "A+B",
  "p2": "Fresh",
  "p3": "Milk"
}
```

## Usage Notes

Adding together 2 decimals using A+B(LMATH) adds together just the integer portions of the decimal number:

![AplusB_Usage](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/AplusB_Usage.PNG)

See Also:

- LMATH A-B
- LMATH A+B+A
- LMATH A+B+C+D
- [Expression Field](/v1/docs/expression-field)
- [A+B (DMATH)](/v1/docs/dmathfunction-3)

## Example

| Example | Details |
| --- | --- |
| **Description** | Add two numeric fields together |
| **Input** | - Table: = [wholesale] - Filter:= [No Filter] - Function: = LMath - **Math Function** **= A+B** - A:= [wholesale ].[fresh] - B:= [wholesale].[milk] - Name: = fresh n milk |
| **Sample** | ![AplusB_Example](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/AplusB_Example.PNG) |