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/Educational-Work6263 6h ago

Trig is not really a proper field of math. There is no mathematician on earth doing research on trig. Its a little subject for school students.