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2. KDE Education Project - Wikipedia

   en.wikipedia.org/wiki/KDE_Education_Project

   Integrated four environments, (SageMath, Maxima, R, KAlgebra) into the KDE Platform and provides a nice, worksheet-based, graphical user interface. [ 10 ] KAlgebra - A mathematical calculator that lets you plot different types of 2D and 3D functions and perform based upon content markup MathML language.

3. Microsoft Excel - Wikipedia

   en.wikipedia.org/wiki/Microsoft_Excel

   In the figure, the fraction 1/9000 is displayed in Excel. Although this number has a decimal representation that is an infinite string of ones, Excel displays only the leading 15 figures. In the second line, the number one is added to the fraction, and again Excel displays only 15 figures. In the third line, one is subtracted from the sum using ...

4. Megamaths - Wikipedia

   en.wikipedia.org/wiki/Megamaths

   Megamaths is a BBC educational television series for primary schools that was originally aired on BBC Two from 16 September 1996 to 4 February 2002. For its first three series, it was set in a castle on top of Table Mountain, populated by the four card suits (Kings, Queens and Jacks/Jackies, and a Joker who looked after children that visited the castle and took part in mathematical challenges).

5. Natural number - Wikipedia

   en.wikipedia.org/wiki/Natural_number

   The rational numbers add fractions, and the real numbers add infinite decimals. Complex numbers add the square root of −1. This chain of extensions canonically embeds the natural numbers in the other number systems. [6] [7] Natural numbers are studied in different areas of math.

6. Order of operations - Wikipedia

   en.wikipedia.org/wiki/Order_of_operations

   In academic literature, when inline fractions are combined with implied multiplication without explicit parentheses, the multiplication is conventionally interpreted as having higher precedence than division, so that e.g. 1 / 2n is interpreted to mean 1 / (2 · n) rather than (1 / 2) · n.

7. Percentile - Wikipedia

   en.wikipedia.org/wiki/Percentile

   In statistics, a k-th percentile, also known as percentile score or centile, is a score below which a given percentage k of scores in its frequency distribution falls ("exclusive" definition) or a score at or below which a given percentage falls ("inclusive" definition); i.e. a score in the k-th percentile would be above approximately k% of all scores in its set.