Zero point

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The zero point or reference point zero is a term used in many disciplines, preferably for quantitative information in science and technology. The zero point is the starting point for measured or calculated values ​​from which these - starting with the value zero - are recorded or evaluated. At the same time, the zero point separates the positive from the negative numbers .

In statistics, a narrower term “natural zero point” is used, see interval scale .

Examples of the use of the term are:

Zero point of a scale (display device)
the beginning of a folding rule
the scale value for the currentlessness of an ammeter
Zero point of a scale (quantification)
the zero point of the Celsius scale, which is set at the temperature 273.15 K (historically on the ice point )
the normal height zero as the zero level for the height above sea level in Germany
the zero point of a time scale , e.g. B. 0 o'clock world time or the year 0 for the astronomical year counting
in the electrochemistry of the zero point of the electrode potential which the potential of the hydrogen electrode is placed
Origin of coordinates
the origin point on coordinate axes with the value zero; often, but not necessarily, the intersection of the axes
a fundamental point or geodetic datum in geodesy
the workpiece zero point as a reference point when CNC machining a workpiece

Examples from science and technology in which the use of the term zero point is not possible:

See also

Web links

Wiktionary: Nullpunkt  - explanations of meanings, word origins, synonyms, translations

Individual evidence

  2. Hans Heiner Storrer: Introduction to the mathematical treatment of the natural sciences II. Birkhäuser Verlag, 1995, p. 7