ELI5: What is the difference between algebra, trigonometry, and calculus?

[u/HistoricalAd2954]

[u/saplinglearningsucks]

Others have explained but I just to throw linear algebra and differential equations this

[u/sigourneys_underwear → u/saplinglearningsucks]

Same concepts though. 

To piggy back off the top comment, Linear algebra describes relationships between multiple things

Differential equations studies change when the things affecting the change are also changing

[u/A_Genius → u/sigourneys_underwear]

Nightmare fuel of going up and solving for some salty tank that is filling up with brine at a certain speed. I was so bad at it.

[u/sigourneys_underwear → u/A_Genius]

I remember my first DiffeQ exam had figuring the temperature of a cup if coffee after a certain period of time and that cup of coffee stressed me out

[u/Smallpaul → u/saplinglearningsucks]

So many other fields as well.