isogonic

/,aisou'gɔnik/

Thân thiện

A navigator uses an isogonic chart to plot a course.

Definition

1. Adjective:
   • Having or making equal angles: Describes lines or curves that intersect at equal angles. This term is primarily used in mathematics, geography (cartography), and navigation.

Usage

• The term "isogonic" is a technical adjective used in specific scientific contexts. It modifies nouns to indicate that the subject possesses the property of equal angles.
• It is most commonly encountered in the phrase "isogonic line" (or "isogonic"), which refers to a line on a map connecting points of equal magnetic declination.

Examples

• Adjective:
  • The cartographer drew isogonic lines to show areas with identical magnetic variation.
  • In geometry, two curves that intersect at constant angles are described as isogonic.

Advanced Usage

• "Isogonic chart": A map featuring isogonic lines, used primarily in aviation and maritime navigation.
  • Pilots consult an isogonic chart to correct for magnetic compass deviations.

Variants and Related Words

• Isogon (noun): A polygon with all angles equal.
  • A rectangle is an example of an isogon.
• Isogonal (adjective): A synonym for "isogonic," meaning equal-angled.
  • The transformation preserved the isogonal property of the figure.

Synonyms

• Equiangular: Having equal angles (more common in general geometry).
• Isogonal: Equal-angled (used interchangeably with "isogonic" in mathematics).

Notes on Different Meanings

• The core meaning of "isogonic" is consistently related to equal angles. Its application differs by field:
  • Mathematics/Geometry: Describes figures or curves intersecting at constant angles.
  • Geomagnetism/Navigation: Almost exclusively used to describe lines of equal magnetic declination on maps. In this context, "isogonic line" is often shortened to "isogonic."

Học thuật

Adjective

1. having or making equal angles