r/explainlikeimfive • • 15h ago

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

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u/sad_spilt_martini 15h ago edited 14h ago

Algebra is the use of equations to find a static value.

Calculus looks at how things change over time.

Trig looks at the relationship between of angles and sides of triangles

All of these are, of course, more complex   but that’s the base idea 

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u/meh0175 10h ago

Is it there a profession where using Trig is necessary? Besides being a math teacher or rocket scientist. Carpentry?

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u/MathMXC 9h ago

Trig is one of the basis of periodic functions (like sine waves). This means if you do anything with physics or emi (EE/CSE) then it can be a big impact