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f-number. Diagram of decreasing apertures, that is, increasing f-numbers, in one-stop increments; each aperture has half the light-gathering area of the previous one. An f-number is a measure of the light-gathering ability of an optical system such as a camera lens. It is calculated by dividing the system's focal length by the diameter of the ...
Employer Identification Number. The Employer Identification Number ( EIN ), also known as the Federal Employer Identification Number ( FEIN) or the Federal Tax Identification Number ( FTIN ), is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to business entities operating in the United States for the purposes of ...
Country Police Ambulance Fire Notes Afghanistan 119: 112: 119 Bahrain 999: Mobile phones – 112, Traffic police – 199, Coast Guard – 994. Bangladesh 999: Anti Corruption Commission – 106, Agricultural Information Services – 16123, Health Services – 16263, Dhaka WASA – 16162, Women and Children Ministry – 109, Legal Services – 16430, National Information Service — 333, IEDCR ...
RLDatix is a global enterprise software company offering software and services tailored to healthcare organizations. The technology platform is designed to support hospitals and other providers with risk mitigation, regulatory compliance, and workforce management resources. The RLDatix suite includes tools for incident reporting, maintaining ...
An Individual Number (個人番号, kojin bangō), also known as My Number (マイナンバー, mai nambā), is a twelve-digit ID number issued to all citizens and residents of Japan (including foreign residents) used for taxation, social security and disaster response purposes. The numbers were first issued in late 2015. [1] [2] [3]
Principal quantum number. In quantum mechanics, the principal quantum number (symbolized n) is one of four quantum numbers assigned to each electron in an atom to describe that electron's state. Its values are natural numbers (from one) making it a discrete variable . Apart from the principal quantum number, the other quantum numbers for bound ...
The Australian Business Number (ABN) is a unique 11-digit identifier issued by the Australian Business Register (ABR) which is operated by the Australian Taxation Office (ATO). The ABN was introduced on 1 July 2000 by John Howard 's Liberal government as part of a major tax reform, which included the introduction of a GST .
The contradiction means that this assumption must be false, i.e. log 2 3 is irrational, and can never be expressed as a quotient of integers m/n with n ≠ 0. Cases such as log 10 2 can be treated similarly. Types. An irrational number may be algebraic, that is a real root of a polynomial with integer coefficients.