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26 Topic Pages Found in Mathematics & Statistics and starting with the letter P
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Open Parallelograms

A quadrilateral (a shape with four sides) with opposite pairs of sides equal in length and parallel, and opposite angles equal. The diagonals of a

Open Pascal, Blaise (1623 - 1662)
Pascal, Blaise (1623 - 1662)

Place : France Subject : biography, maths and statistics French mathematician, physicist, and religious recluse who was not only a scientist anxious

Open Pascal's triangle
Pascal's triangle

A convenient summary of the coefficients in the binomial expansion of ( a + b ) n , where n is an integer as shown in Fig. P.2. Each row relates to a

Pearson, Karl (1857 - 1936)

Place : United States of America Subject : biography, maths and statistics English mathematician and biometrician who is chiefly remembered for his

Open Peirce, Charles S. (Charles Sanders), 1839-1914
Peirce, Charles S. (Charles Sanders), 1839-1914

Charles Sanders Peirce (1839-1914) was one of the foundational theorists of pragmatism and semiotics. He was born in Cambridge, Massachusetts, the son

Open Penrose, Sir Roger (1931 - )
Penrose, Sir Roger (1931 - )

Place: United Kingdom, England Subject : biography, maths and statistics, astronomy English mathematician who, through his theoretical work, has made

Open Pentagon

Five-sided plane figure. A regular pentagon has all five sides of equal length and all five angles of equal size, 108°. It has golden section


A five-pointed star drawn with five straight lines whose intersection forms a pentagon; a powerful symbol in neopaganism, Wicca and ceremonial magic.


Way of representing a number as a fraction of 100. For example, 45 percent (45%) equals 45/100, and 45% of 20 is 45/100 × 20 = 9. Percentage


in mathematics, the ratio of the circumference of a circle to its diameter. The symbol for pi is π. The ratio is the same for all circles and is