# real part of complex number

## Calculus real_part

The real_part function calculates online the real part of a complex number.
real_part(1+7i), returns 1

### Function : real_part

#### Summary :

The real_part function calculates online the real part of a complex number.

real_part online

#### Description :

Writing z = a + ib where a and b are real is called algebraic form of a complex number z :

When b=0, z is real, when a=0, we say that z is pure imaginary.

For calculating real part of the complex number following z=1+7i, enter real_part(1+7i) or directly 1+7i, if the real_part button already appears, the result 1 is returned.

The complex numbers calculator can also determine the real part of a complex expression. To calculate the real part of the following complex expression z=(1+i)/(1-i), enter real_part((1+i)/(1-i)) or directly (1+i)/(1-i), if the button real_part already appears, the result 0 is returned.

With this function, the calculator allows the online calculation of the real part of a complex number.

The real_part function calculates online the real part of a complex number.

#### Syntax :

real_part(z), z is a complex number

#### Examples :

real_part(1+7i), returns 1

Calculate online with real_part (real part of complex number)