## Sum

Purpose

Description

Macro Synopsis

Modules

Related Functions

### Purpose

Sum of signals

### Description

"Sum" computes the pointwise sum

of two signals x1 and x2.
**Warning:** *Note that if the input signals have different x-axis scales (sampling periods), the signal with the largest scale will be adapted automatically by interpolating between successive sample points. The type of interpolation can be set in the Basic Options menu.*

### Macro Synopsis

`y = Add([x1,x2]);`

signal x1,x2,y;

### Modules

Student, Professional

### Related Functions

Difference, Add constant, Product,
Quotient, Rescale, Reciprocal.