Showing 1-18 of 18 results

…A statement that the values of two mathematical expressions are equal (indicated by the sign =)…

…a quadratic equation…

…The equation of state of an ideal gas, PV = nRT, where P = pressure, V = volume, T = absolute temperature, R = the gas constant, and n = the number of moles of gas…

…A differential equation expressing the properties of motion in waves…

…A speculative equation that gives an estimate of the likelihood of discovering intelligent extraterrestrial life in the galaxy, expressed as the product of a series of factors such as the number of stars, the fraction of stars with planets, the fraction of planets on which life evolves, the average lifetime of a civilization, etc. It was formulated by the US astronomer Frank Drake in 1961…

…An equation between two variables that gives a straight line when plotted on a graph…

…An equation involving derivatives of a function or functions…

…A polynomial equation with integral coefficients for which integral solutions are required…

…An equation showing the relationship between the values of the pressure, volume, and temperature of a quantity of a particular substance…

…The difference between mean solar time (as shown by clocks) and apparent solar time (indicated by sundials), which varies with the time of year…

…A differential equation that forms the basis of the quantum-mechanical description of matter in terms of the wavelike properties of particles in a field. Its solution is related to the probability density of a particle in space and time…

…An equation containing one or more partial derivatives…

…An equation involving only the first derivative, second derivative, etc.…

…A situation or problem in which several factors must be taken into account…

…A set of four linear partial differential equations that summarize the classical properties of the electromagnetic field…

…Equations involving two or more unknowns that are to have the same values in each equation…

…An equation involving only the first derivative, second derivative, etc.…

…An equation involving only the first derivative, second derivative, etc.…