Working with Complex Numbers

The first known reference to square roots of negative numbers comes from the work of Greek mathematicians such as Heron of Alexandria in the first century BC, as a result of an impossible section of a pyramid.

Since then,throughout history was perfected this technique thanks to mathematical people such as Cardano, Euler or Gauss...giving us the Number Complex science we have nowadays.

An imaginary number is a square root of a nonpositive actual number. Imaginary numbers Have the form bi where b is a real number and i is the imaginary unit, defined as the square root of -1.

An imaginary number bi can be added to a real number a to form a complex numberof the form a+bi, where a and b are called respectively, the "real part" and the "imaginary part" of the complex number. Imaginary numbers can therefore be thought of as complex numbers where the real part is zero, and vice versa.

The name "imaginary number" was originally coined in the seventeenth century as a derogatory term as such numbers were regarded by some as fictitious or useless, but today they have essential, concrete applications in a variety of scientific and related areas.