How to swap three numbers in MATLAB with out using a temporary variable

%DECLARING THE VALUES OF A%

a=1;
b=2;
c=3;

% Code for swapping %

a=a+b+c;
b=a-b-c;
c=a-b-c;
a=a-b-c;

%PRINTING THE SWAPPED VARIABLES%

a
b
c

FLEMINGS LEFT HAND RULE

Flemings right hand rule is used to identify the direction of induced current when a conductor cuts the magnetic field

Stretch the THUMB,FIRST FINGER,MIDDLE FINGER OF YOUR RIGHT HAND MUTUALLY PERPENDICULAR
IF THUMB SHOWS THE DIRECTION OF FORCE AND
FIRST FINGER REPRESENTS THE DIRECTION OF MAGNETIC FIELD
THEN MIDDLE FINGER REPRESENTS THE DIRECTION OF CURRENT

Note that Flemings right hand rule is used only for generator
But not for motor

Easy ways to remember:

1.  [Flemings right hand rule]=[generator]
Both the words have two R's it is one way of remembering that Flemings right hand is used for generator

2.  FBI
F(force)-THUMB
B(magnetic field)-FIRST FINGER
I(current)- middle finger

CAN ELECTRICITY PASS THROUGH PENCIL LED

Yes,because pencil led is made of GRAPHITE which is a conductor of electricity

Who used the word electricity for first time

The word electric was first used by Francis
Bacon to describe materials like amber that
attracted other objects.