si( z )

The si of z in Math. Defined by

si(z)=∫sin(z)z

sin(x) in 2D graph.

sin(x*y) in 3D graph.

Real part on the real axis:

-5.0 -2.5 2.5 5.0 -1.5 -1.0 -0.5 0.5 1.0 1.5

Imaginary part on the real axis is zero.

Real part on the imaginary axis is zero.

Imaginary part on the imaginary axis:

-5.0 -2.5 2.5 5.0 -100 -50 50 100

Real part on the complex plane:

Imaginary part on the complex plane:

Absolute value on the complex plane:

Related functions:   cos   csc   arcsin

Function category: circular functions