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This slide rule is positioned to yield several values: From C scale to D scale (multiply by 2), from D scale to C scale (divide by 2), A and B scales (multiply and divide by 4), A and D scales (squares and square roots). In addition to the logarithmic scales, some slide rules have other mathematical functions encoded on other auxiliary scales.
The molar volume of an ideal gas at 100 kPa (1 bar) is 0.022 710 954 641 485... m 3 /mol at 0 °C, 0.024 789 570 296 023... m 3 /mol at 25 °C. The molar volume of an ideal gas at 1 atmosphere of pressure is 0.022 413 969 545 014... m 3 /mol at 0 °C, 0.024 465 403 697 038... m 3 /mol at 25 °C.
By 1970, a calculator could be made using just a few chips of low power consumption, allowing portable models powered from rechargeable batteries. The first handheld calculator was a 1967 prototype called Cal Tech, whose development was led by Jack Kilby at Texas Instruments in a research project to produce a portable calculator. It could add ...
A simple arithmetic calculator was first included with Windows 1.0. [5]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.
100.0: 100.0: 79.39: 0.79784: 0.78934: 0.78506: 0.78075: 0.79074: 0.78736: −114.3 Mass fraction, % Volume concentration, % Mass concentration, g/(100 ml) at 15.56 °C Density relative to 4 °C water Density at 20 °C relative to 20 °C water Density at 25 °C relative to 25 °C water Freezing temperature, °C 10 °C 20 °C 25 °C 30 °C
Mathematically, density is defined as mass divided by volume: [1] =, where ρ is the density, m is the mass, and V is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume , [ 2 ] although this is scientifically inaccurate – this quantity is more ...
A method analogous to piece-wise linear approximation but using only arithmetic instead of algebraic equations, uses the multiplication tables in reverse: the square root of a number between 1 and 100 is between 1 and 10, so if we know 25 is a perfect square (5 × 5), and 36 is a perfect square (6 × 6), then the square root of a number greater than or equal to 25 but less than 36, begins with ...
Mathematics: The probability of matching 20 numbers for 20 in a game of keno is approximately 2.83 × 10 −19. Mathematics: The odds of a perfect bracket in the NCAA Division I men's basketball tournament are 1 in 2 63, approximately 1.08 × 10 −19, if coin flips are used to predict the winners of the 63 matches. [6]