Machine Learning From scratch | Part 1. Scaler, And Vector
Hello Every One Lets start with the very basic prerequisit of machine learning I wont be taelling you the why and what of machine learning rather lets see some simple maths which can be usefull in our journey of ml
Scaler And Vector
Two Statments
- I have Travelled 50Km
- I have travelled 50km in North-East direction
In first statment if you see we have only one value that is distance which i have travelled so it will be scaller (only one value)
In the second statment we have two things Distance and in which direction so this will be a vector (2 or more values)
In simple words one value is scaler and multiple values (dimentions) are vector
one more example
Lets say my temrature changes 2 unit
so here we know that temratture has changed by 2 unit and that only we know so it will be scaller
and my temprature increased 2 unit or decresed 2 unit
in this statment have 2 dementions temprature and directtion so this will be vector
There are plenty of scalar quantity examples, some of the common examples are:
- Mass
- Speed
- Distance
- Time
- Area
- Volume
- Density
- Temperature
Vector quantity examples are many, some of them are given below:
- Linear momentum
- Acceleration
- Displacement
- Momentum
- Angular velocity
- Force
- Electric field
- Polarization
Next : Vector Dot Products