**Symmetrical signal or even signal :**

A signal x (t) is said to be symmetrical or even if it satisfies the following condition.

**Condition for symmetry : x(t) = x(-t)**

Where, x(t) = Value of the signal for positive "t" and x(-t) = Value of the signal for negative "t".

An example of symmetrical signal is a cosine wave shown in figure :

**This article also gives the some properties of even and odd signals**

**Anti symmetrical signal or odd signal :**

**A signal x(t) is said to be Anti symmetrical or odd if it satisfies the following condition,**

**Condition for anti-symmetry : x (t) = -x(-t)**

An example of odd signal is a sine wave shown in figure :

**Symmetrical signal or even signal :**

A signal x (t) is said to be symmetrical or even if it satisfies the following condition.

**Condition for symmetry : x(t) = x(-t)**

Where, x(t) = Value of the signal for positive "t" and x(-t) = Value of the signal for negative "t".

An example of symmetrical signal is a cosine wave shown in figure :

**This article also gives the some properties of even and odd signals**

**Anti symmetrical signal or odd signal :**

**A signal x(t) is said to be Anti symmetrical or odd if it satisfies the following condition,**

**Condition for anti-symmetry : x (t) = -x(-t)**

An example of odd signal is a sine wave shown in figure :