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  2. Completing the square - Wikipedia

    en.wikipedia.org/wiki/Completing_the_square

    This crucial step completes a larger square of side length ⁠ + ⁠. Completing the square is the oldest method of solving general quadratic equations , used in Old Babylonian clay tablets dating from 1800–1600 BCE, and is still taught in elementary algebra courses today.

  3. Khan Academy - Wikipedia

    en.wikipedia.org/wiki/Khan_Academy

    Khan Academy is an American non-profit [3] educational organization created in 2006 by Sal Khan. [1] Its goal is to create a set of online tools that help educate students. [4] ...

  4. Euler method - Wikipedia

    en.wikipedia.org/wiki/Euler_method

    The next step is to multiply the above value by the step size , which we take equal to one here: h ⋅ f ( y 0 ) = 1 ⋅ 1 = 1. {\displaystyle h\cdot f(y_{0})=1\cdot 1=1.} Since the step size is the change in t {\displaystyle t} , when we multiply the step size and the slope of the tangent, we get a change in y {\displaystyle y} value.

  5. Sal Khan - Wikipedia

    en.wikipedia.org/wiki/Sal_Khan

    Salman "Sal" Amin Khan (born October 11, 1976) is an American educator and the founder of Khan Academy, a free online non-profit educational platform with which he has produced over 6,500 video lessons teaching a wide spectrum of academic subjects, originally focusing on mathematics and science. [1]

  6. 3Blue1Brown - Wikipedia

    en.wikipedia.org/wiki/3Blue1Brown

    Sanderson graduated from Stanford University in 2015 with a bachelor's degree in mathematics. [8] He worked for Khan Academy from 2015 to 2016 as part of their content fellowship program, producing videos and articles about multivariable calculus, after which he started focusing his full attention on 3Blue1Brown.

  7. Telegrapher's equations - Wikipedia

    en.wikipedia.org/wiki/Telegrapher's_equations

    The telegrapher's equations, like all other equations describing electrical phenomena, result from Maxwell's equations. In a more practical approach, one assumes that the conductors are composed of an infinite series of two-port elementary components, each representing an infinitesimally short segment of the transmission line:

  8. Cubic equation - Wikipedia

    en.wikipedia.org/wiki/Cubic_equation

    In fact, if the equation is reducible, one of the factors must have degree one, and thus have the form , with q and p being coprime integers. The rational root test allows finding q and p by examining a finite number of cases (because q must be a divisor of a , and p must be a divisor of d ).

  9. Complex quadratic polynomial - Wikipedia

    en.wikipedia.org/wiki/Complex_quadratic_polynomial

    Quadratic polynomials have the following properties, regardless of the form: It is a unicritical polynomial, i.e. it has one finite critical point in the complex plane, Dynamical plane consist of maximally 2 basins: basin of infinity and basin of finite critical point ( if finite critical point do not escapes)

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