Mathematics is Everywhere
Mathematics affects many parts of our lives in unbelievable ways.
For example, did you know that those image filters are mathematical equations that were converted to computer algorithms?
Pictures are made of small units called pixels (picture elements). Each pixel has a numerical value. This value represents the amount of red, blue and green light in the pixel.
Your machine (phone or pc) reads this numerical value to display each pixel correctly.
When you apply a filter, you're asking your software to run an algorithm.
The algorithm takes the numerical value of each pixel and substitutes it for a variable in a mathematical formula.
The result is a new numerical value for each pixel which your machine reads to display a new image.
This simple process involves at least four fields of knowledge:
- Physics: electromagnetic radiation
- Mathematics
- Computer programming, and
- Fine art (aesthetics).
I know this because I do remote sensing which involves working with satellite images.
Satellite imagery is, more or less, an advanced form of photography.
So when some people say things like "all teach in school is useless", I just look at them and keep quiet because I don't know where to start their education from.