Tags » Quadratic

Cubic Equations And The Complex Field

One thing I wish to see in languages such as PHP is to find them supporting the complex type. Complex numbers are more than vectors in 2D, and I wish to see expression containing them parsed just like the ones with real numbers. 334 more words

The paper napkin trigonometry trick with a smattering of Pythagorean triples. 

Take a piece of paper and do the following:

  1. Make it into a square (interesting discussion on best way to do this).
  2. Fold in half then unfold so you have created crease along a vertical line of symmetry…
  3. 81 more words
Algebra

Let Them Struggle!

So apparently there is this MTBoS30 thing happening, which is particularly serendipitous, as I had a rather fantastic inspiration this morning with my Algebra class this morning. 572 more words

In solving the quadratic equation 8z2 - 3z - 2 = 0 by the method of Completing the Square, which of the following is correct?

In solving the quadratic equation 8z2 – 3z – 2 = 0 by the method of Completing the Square, which of the following is correct? 8 more words

Quadratic Marble Slides

Not only was I able to kind of roughly go through this exercise, give up and come back to it. But it was interesting how changing a number, the position of it, letters, brackets can change the parabola and make it work for the purpose you need it for. 140 more words

The D of a Quadratic

The discriminant is able to tel you the roots of the polynomial. The discriminant has three values from which are positive, negative and zero. The positive has two real root, while the zero has one root and the negative has two complex roots.   170 more words