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In the United States, a 401 (k) plan is an employer-sponsored, defined-contribution, personal pension (savings) account, as defined in subsection 401 (k) of the U.S. Internal Revenue Code. [1] Periodic employee contributions come directly out of their paychecks, and may be matched by the employer. This pre-tax option is what makes 401 (k) plans ...
Roth 401 (k) The Roth 401 (k) is a type of retirement savings plan. It was authorized by the United States Congress under the Internal Revenue Code, section 402A, [1] and represents a unique combination of features of the Roth IRA and a traditional 401 (k) plan. Since January 1, 2006, U.S. employers have been allowed to amend their 401 (k) plan ...
Kleene's algorithm. In theoretical computer science, in particular in formal language theory, Kleene's algorithm transforms a given nondeterministic finite automaton (NFA) into a regular expression. Together with other conversion algorithms, it establishes the equivalence of several description formats for regular languages.
Learn how to update your settings to make AOL Mail look and feel exactly how you need it. Netscape Internet Service (ISP) · Jan 30, 2024. Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.
Euler's identity. In mathematics, Euler's identity [note 1] (also known as Euler's equation) is the equality. is pi, the ratio of the circumference of a circle to its diameter. Euler's identity is named after the Swiss mathematician Leonhard Euler. It is a special case of Euler's formula when evaluated for .
Euler's formula, named after Leonhard Euler, is a mathematical formula in complex analysis that establishes the fundamental relationship between the trigonometric functions and the complex exponential function. Euler's formula states that, for any real number x, one has. where e is the base of the natural logarithm, i is the imaginary unit, and ...
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RC time constant. The RC time constant, denoted τ (lowercase tau ), the time constant (in seconds) of a resistor–capacitor circuit (RC circuit), is equal to the product of the circuit resistance (in ohms) and the circuit capacitance (in farads ), i.e.: It is the time required to charge the capacitor, through the resistor, from an initial ...