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  2. Buffon's needle problem - Wikipedia

    en.wikipedia.org/wiki/Buffon's_needle_problem

    Buffon's needle was the earliest problem in geometric probability to be solved; [2] it can be solved using integral geometry. The solution for the sought probability p, in the case where the needle length l is not greater than the width t of the strips, is. This can be used to design a Monte Carlo method for approximating the number π ...

  3. Quadratic function - Wikipedia

    en.wikipedia.org/wiki/Quadratic_function

    The solutions of a quadratic equation are the zeros of the corresponding quadratic ... The vertical line ... where a and the discriminant b 2 − 4ac are positive, with.

  4. Vertical line test - Wikipedia

    en.wikipedia.org/wiki/Vertical_line_test

    Vertical line test. The vertical line test, shown graphically. The abscissa shows the domain of the (to be tested) function. In mathematics, the vertical line test is a visual way to determine if a curve is a graph of a function or not. A function can only have one output, y, for each unique input, x. If a vertical line intersects a curve on an ...

  5. Conic section - Wikipedia

    en.wikipedia.org/wiki/Conic_section

    The labeling associates the lines of the pencil through A with the lines of the pencil through D projectively but not perspectively. The sought for conic is obtained by this construction since three points A, D and P and two tangents (the vertical lines at A and D) uniquely determine the conic. If another diameter (and its conjugate diameter ...

  6. Linear equation - Wikipedia

    en.wikipedia.org/wiki/Linear_equation

    Conversely, every line is the set of all solutions of a linear equation. The phrase "linear equation" takes its origin in this correspondence between lines and equations: a linear equation in two variables is an equation whose solutions form a line. If b ≠ 0, the line is the graph of the function of x that has been defined in the preceding ...

  7. Division by zero - Wikipedia

    en.wikipedia.org/wiki/Division_by_zero

    When this is written using the symmetrical ratio notation, a horizontal line has slope : and a vertical line has slope : However, if the slope is taken to be a single real number then a horizontal line has slope 0 1 = 0 {\displaystyle {\tfrac {0}{1}}=0} while a vertical line has an undefined slope, since in real-number arithmetic the quotient 1 ...

  8. Slope - Wikipedia

    en.wikipedia.org/wiki/Slope

    Slope illustrated for y = (3/2)x − 1.Click on to enlarge Slope of a line in coordinates system, from f(x) = −12x + 2 to f(x) = 12x + 2. The slope of a line in the plane containing the x and y axes is generally represented by the letter m, [5] and is defined as the change in the y coordinate divided by the corresponding change in the x coordinate, between two distinct points on the line.

  9. Parabola - Wikipedia

    en.wikipedia.org/wiki/Parabola

    (The solution, however, does not ... from vertical is the same as line means that, viewing from the side (that is, the plane ... At the positive x end of the chord, x