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William Playfair (22 September 1759 – 11 February 1823) was a Scottish engineer and political economist. [1] The founder of graphical methods of statistics, [2] Playfair invented several types of diagrams: in 1786 he introduced the line, area and bar chart of economic data, and in 1801 he published what were likely the first pie chart and circle graph, used to show part-whole relations. [3]
Livegap Charts creates line, bar, spider, polar-area and pie charts, and can export them as images without needing to download any tools. Veusz is a free scientific graphing tool that can produce 2D and 3D plots. Users can use it as a module in Python. GeoGebra is open-source graphing calculator and is freely available for non-commercial users.
First Narrows forms the western mouth of Vancouver's inner harbour. Prior to the dredging shallow sandbanks extended far from the north shore. First Narrows is the official name for the entrance to Burrard Inlet , the mouth of Vancouver, British Columbia 's inner harbour.
Casio fx-7000G; the world's first graphing calculator. An early graphing calculator was designed in 1921 by electrical engineer Edith Clarke. [1] [2] [3] The calculator was used to solve problems with electrical power line transmission. [4] Casio produced the first commercially available graphing calculator in 1985.
In it, geometrical shapes can be made, as well as expressions from the normal graphing calculator, with extra features. [8] In September 2023, Desmos released a beta for a 3D calculator, which added features on top of the 2D calculator, including cross products, partial derivatives and double-variable parametric equations. [9]
Here's how Jan. 11 will affect you, based on your zodiac sign. Related: The Ultimate 2025 Horoscope Predictions for Each Zodiac Sign, According to a Celebrity Astrologer Aries (March 20-April 19)
Each bar can also have a comment, such as "comment7=xx" to show "(xx)" after the number in bar 7. For a 2-column bar chart, the 2nd column items have prefix "col2_" such as scale maximum, col2_data_max=110, and col2_data3=67 with col2_comment3=zz. See below: "Example with two data columns". Each bar chart can be formatted typically within 1/5 ...
Here’s what the cosmos are bringing to your zodiac sign on Nov. 11: Aries. Aries. ... Your current motto is “happy family, happy life.” Spend the day with those you value and love to bring ...