![]() The combination of speed and programmability allowed for thousands more calculations for problems. ![]() ![]() It had a speed on the order of one thousand times faster than that of electro-mechanical machines this computational power, coupled with general-purpose programmability, excited scientists and industrialists alike. ĮNIAC was formally dedicated at the University of Pennsylvania on February 15, 1946, having cost $487,000 (equivalent to $6,200,000 in 2021), and called a "Giant Brain" by the press. ĮNIAC was completed in 1945 and first put to work for practical purposes on December 10, 1945. However, its first program was a study of the feasibility of the thermonuclear weapon. Presper Eckert to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory (which later became a part of the Army Research Laboratory). ĮNIAC was designed by John Mauchly and J. It was Turing-complete and able to solve "a large class of numerical problems" through reprogramming. There were other computers that had combinations of these features, but the ENIAC had all of them in one computer. 1947–1955)ĮNIAC ( / ˈ ɛ n i æ k/ Electronic Numerical Integrator and Computer) was the first programmable, electronic, general-purpose digital computer, completed in 1945. Beck (background) and Betty Snyder (foreground) program ENIAC in BRL building 328. All of these are supported by this online area calculator.Four ENIAC panels and one of its three function tables at the School of Engineering and Applied Science at the University of Pennsylvania For right-angled triangles you can calculate the area by knowing the hypotenuse and the height towards it. There are multiple rules to calculate a triangle's area: SSS (side-side-side), SAS (two sides and the included angle), SSA (two sides and a non-included angle), ASA (two angles and the included side). Visual in the figure below:ĭespite the simplicity of the above equation, in specific situations you may not know these two exact measurements. The formula for the area of a triangle is height x π x (radius / 2) 2, where (radius / 2) is the radius of the base (d = 2 x r), so another way to write it is height x π x radius 2. Irregular shapes would often be broken down to a series of rectangles so that their area can be approximately calculated. It is one of the easiest figures to compute an area for. You need to take two measurements: the width and the height, and just multiply them together. The formula for the area of a rectangle is width x height, as seen in the figure below: However, since in most practical situations you need to measure both sides before you know it is a square, it might not be a huge difference, but at least it is easier to calculate. ![]() This is the simplest figure to calculate as all you need is a single measurement. The formula for the area of a square is side 2, as seen in the figure below: paint required), in land management, agriculture, biology, ecology, and many other disciplines. square centimeters, square kilometers, square inches, square feet, square miles.Īrea calculations have applications in construction and home decoration (e.g. The result is always a squared unit, e.g. When taking measurements or reading plans, make sure all measurements are in the same units, or convert them to the same unit to get a valid result. See below for details on each individual one this area calculator supports, including the formula used.
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