When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Turtle graphics - Wikipedia

    en.wikipedia.org/wiki/Turtle_graphics

    Turtle graphics are often associated with the Logo programming language. [2] Seymour Papert added support for turtle graphics to Logo in the late 1960s to support his version of the turtle robot, a simple robot controlled from the user's workstation that is designed to carry out the drawing functions assigned to it using a small retractable pen set into or attached to the robot's body.

  3. Chord diagram (information visualization) - Wikipedia

    en.wikipedia.org/wiki/Chord_diagram_(information...

    A chord diagram is a graphical method of displaying the inter-relationships between data in a matrix. The data are arranged radially around a circle with the relationships between the data points typically drawn as arcs connecting the data. The format can be aesthetically pleasing, making it a popular choice in the world of data visualization.

  4. Ulam spiral - Wikipedia

    en.wikipedia.org/wiki/Ulam_spiral

    The prominent parallel line in the lower half of the figure corresponds to 4x 2 + 2x + 41 or, equivalently, to negative values of x. Conjecture F is concerned with polynomials of the form ax 2 + bx + c where a, b, and c are integers and a is positive.

  5. Fibonacci prime - Wikipedia

    en.wikipedia.org/wiki/Fibonacci_prime

    A prime divides if and only if p is congruent to ±1 modulo 5, and p divides + if and only if it is congruent to ±2 modulo 5. (For p = 5, F 5 = 5 so 5 divides F 5) . Fibonacci numbers that have a prime index p do not share any common divisors greater than 1 with the preceding Fibonacci numbers, due to the identity: [6]

  6. Fixed-point logic - Wikipedia

    en.wikipedia.org/wiki/Fixed-point_logic

    For a relational signature X, FO[PFP](X) is the set of formulas formed from X using first-order connectives and predicates, second-order variables as well as a partial fixed point operator used to form formulas of the form [, ⁡], where is a second-order variable, a tuple of first-order variables, a tuple of terms and the lengths of and coincide with the arity of .

  7. Prime-counting function - Wikipedia

    en.wikipedia.org/wiki/Prime-counting_function

    In mathematics, the prime-counting function is the function counting the number of prime numbers less than or equal to some real number x. [1] [2] It is denoted by π(x) (unrelated to the number π). A symmetric variant seen sometimes is π 0 (x), which is equal to π(x) − 1 ⁄ 2 if x is exactly a prime number, and equal to π(x) otherwise.

  8. Prime form - Wikipedia

    en.wikipedia.org/wiki/Prime_form

    The prime form E is not quite a holomorphic function on X × X, but is a section of a holomorphic line bundle over this space. Prime forms were introduced by Friedrich Schottky and Felix Klein. Prime forms can be used to construct meromorphic functions on X with given poles and zeros. If Σn i a i is a divisor linearly equivalent to 0, then ΠE ...

  9. N-Triples - Wikipedia

    en.wikipedia.org/wiki/N-Triples

    N-Triples is a format for storing and transmitting data. It is a line-based, plain text serialisation format for RDF (Resource Description Framework) graphs, and a subset of the Turtle (Terse RDF Triple Language) format. [1] [2] [3] N-Triples should not be confused with Notation3 which is a superset of Turtle.