arc sine


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

Origin of arc sine

1
First recorded in 1905–10
  • Also called inverse sine.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

Scientific definitions for arc sine

arc sine

  1. The inverse of the sine function.

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