Search results
Results from the WOW.Com Content Network
A difference engine is an automatic mechanical calculator designed to tabulate polynomial functions. It was designed in the 1820s, and was first created by Charles Babbage . The name difference engine is derived from the method of finite differences , a way to interpolate or tabulate functions by using a small set of polynomial co-efficients.
Differential unit for a rear-wheel drive car, built by ZF c. 2004 Differential gears (in yellow) in a punched tape reader, built by Tally c. 1962 A differential is a gear train with three drive shafts that has the property that the rotational speed of one shaft is the average of the speeds of the others.
Transfer functions for components are used to design and analyze systems assembled from components, particularly using the block diagram technique, in electronics and control theory. Dimensions and units of the transfer function model the output response of the device for a range of possible inputs.
T is the unit tangent, P the unit normal, and B the unit binormal. A Frenet frame is a moving reference frame of n orthonormal vectors e i (t) which are used to describe a curve locally at each point γ(t). It is the main tool in the differential geometric treatment of curves because it is far easier and more natural to describe local ...
In 3 dimensions, a differential 0-form is a real-valued function (,,); a differential 1-form is the following expression, where the coefficients are functions: + +; a differential 2-form is the formal sum, again with function coefficients: + +; and a differential 3-form is defined by a single term with one function as coefficient: .
[2] [3] It was first described in 1837 as the successor to Babbage's Difference Engine, which was a design for a simpler mechanical calculator. [ 4 ] The analytical engine incorporated an arithmetic logic unit , control flow in the form of conditional branching and loops , and integrated memory , making it the first design for a general-purpose ...
A digital differential analyzer (DDA), also sometimes called a digital integrating computer, [1] is a digital implementation of a differential analyzer. The integrators in a DDA are implemented as accumulators , with the numeric result converted back to a pulse rate by the overflow of the accumulator.
A graph of a solution to a leaky integrator; the input changes at T=5. In mathematics, a leaky integrator equation is a specific differential equation, used to describe a component or system that takes the integral of an input, but gradually leaks a small amount of input over time.