Hello there!

This is a second part of the series - "

Question that we would try to answer is the following:

This is a second part of the series - "

*Getting Mathematical".*Here I will be sharing some fun facts about negative numbers.Question that we would try to answer is the following:

*With positive numbers used to measure tangible things - what we can touch or hold (six cars etc.). What do we possibly mean when we flip the sign of a natural number? Intuitively.*

*What could -3 possibly mean? Or what could 10-12 mean? We can not say -2 apples. Then?*

The answer lies in recognizing that apart
from being used as a means of measurement, numbers can also
represents concepts/relationships in the real world. While natural
numbers are used for counting, negative numbers are more for
capturing concepts like debt or comparisons [1]. So, in the question above, 10-12 can be used to model a situation where you have 10 apples but your friends needs a dozen. So, you are short of two apples.

__Another example:__Negative numbers are helpful in modeling alternating patterns[1]. Consider a number

*. If you keep multiplying it by -1, you will get the pattern x,-x,x,-x..The reason that we are considering multiplication by -1 is because it does not change the size of the number. So, allows us to focus on the concept of negativity.*

**x**
Considering that the weather forecast of the day during a month
is oscillating between rainy/sunny. Then knowing today's weather, you
can ascertain the weather 20 days ahead without counting - rainy, sunny,
rainy, sunny.....

Leveraging
negative numbers back and forth behavior: we can say (rainy) *
(-1)(power 20)= rainy.

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That's pretty much about it for this post. I would appreciate if you write back! - questions/suggestions/comments?

Dippy

[1] "A Visual, Intuitive Gide to Imaginary Numbers", betterexplained.com, K. Azad.

**References**[1] "A Visual, Intuitive Gide to Imaginary Numbers", betterexplained.com, K. Azad.