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

real_part(`1+7i`), returns 1

real_part(`1+7i`), returns 1

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

real_part online

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

- a is the
**real part**of z; - b is the imaginary part of 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.

See also :

- Amplitude of a complex number : amplitude. Amplitude function calculates online amplitude of a complex number.
- Complex conjugate : complex_conjugate. Complex_conjugate function calculates conjugate of a complex number online.
- Complex modulus : complex_modulus. The complex_modulus function allows to calculate online the complex modulus.
- Complex number calculator : complex_number. The complex number calculator allows to perform calculations with complex numbers (calculations with i).
- Solving quadratic equation with complex number : complexe_solve. The complex number equation calculator returns the complex values for which the quadratic equation is zero.
- Imaginary part of complex number : imaginary_part. The imaginary_part function calculates online the imaginary part of a complex number.
- Real part of complex number : real_part. The real_part function calculates online the real part of a complex number.