Definite integral: Integral is the core concept in calculus and mathematical analysis. Usually divided into definite integral and indefinite integral. Intuitively speaking, for a given real function f, the definite integral formula in the interval [a, b] is fdx = f.
Indefinite integral: Let it be the original function of function f, and we call all the original functions F+C of function f indefinite integral, called ∫fdx = F+C, where ∫ is called integer, f is called integrand, x is called integral variable, fdx is called integrand, c is called integral constant, and the formula is: FDX+.
brief introduction
Some simple integrals with trigonometric functions can be found in the trigonometric function integral table.
Trigonometric integral is a non-elementary function and contains an integral of trigonometric function. Some simple integrals with trigonometric functions can be found in the trigonometric function integral table.