麦克劳林展开式

e^x = 1+x+x^2/2!+x^3/3!+……+x^n/n!+……
ln(1+x)=x-x^2/2+x^3/3-……+(-1)^(k-1)*(x^k)/k(|x|<1)
sin x = x-x^3/3!+x^5/5!-……+(-1)^(k-1)*(x^(2k-1))/(2k-1)!+……。(-∞<x<∞)
cos x = 1-x^2/2!+x^4/4!-……+(-1)k*(x^(2k))/(2k)!+…… (-∞<x<∞)
arcsin x = x+(1/2)*x^3/3+(3/8)*x^5/5 + ……(2k)!/((4^k)*((k!)^2))*x^(2k+1)/(2k+1)(|x|<1)
arccos x = π/2 - ( x + (1/2)*x^3/3 + (3/8)*x^5/5 + …… ) (|x|<1)
arctan x = x - x^3/3 + x^5/5 -……(x≤1)
sinh x = x+x^3/3!+x^5/5!+……+(-1)^(k-1)*(x^2k-1)/(2k-1)!+…… (-∞<x<∞)
cosh x = 1+x^2/2!+x^4/4!+……+(-1)k*(x^2k)/(2k)!+……(-∞<x<∞)
arcsinh x = x - 1/2*x^3/3 + 1*3/(2*4)*x^5/5 - …… (|x|<1)
arctanh x = x + x^3/3 + x^5/5 + ……(|x|<1)

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jahentao

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