Cosx/x
Input |
---|
(cos(x))/x |
Alternate form |
e^(-i x)/(2 x) + e^(i x)/(2 x) |
Roots |
x = pi n – pi/2, n element Z |
Series expansion at x=0 |
1/x – x/2 + x^3/24 – x^5/720 + O(x^6) (Laurent series) |
Derivative |
d/dx((cos(x))/x) = -(x sin(x) + cos(x))/x^2 |
Indefinite integral |
integral (cos(x))/x dx = Ci(x) + constant |