# Arc sine

the angle, measured in radians, that has a sine equal to a given number. Symbol: sin −1.

Abbreviation: arc sin;

arc sine

The inverse of the sine function.

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- Arc spectrum
a spectrum formed from the light produced by an electric arc, characteristic of the gas or vapor through which the arc passes.

- Arc tan
. arc tangent

- Arc tangent
the angle, measured in radians, that has a tangent equal to a given number. Symbol: tan −1. Abbreviation: arc tan; arc tangent The inverse of the tangent function.

- Arc welding
welding by means of the heat of an electric arc. Historical Examples One difficulty with arc welding is the lack of skillful operators. Oxy-Acetylene Welding and Cutting Harold P. Manly The same advice applies to arc welding as to the gas flame method but in a lesser degree. Oxy-Acetylene Welding and Cutting Harold P. Manly […]