trigonometrical
Related to angles
Trigonometrical is an adjective meaning of or relating to trigonometry, the branch of mathematics dealing with the relationships between the sides and angles of triangles.
It appears in phrases like trigonometrical functions (sine, cosine, tangent) and trigonometrical calculations.
The word is interchangeable with the more common trigonometric, though trigonometrical tends toward British usage and older texts.
Opposite over hypotenuse
- cosineRatio in triangle math
- secantTrig ratio, 1/cos
- identitiesWhat makes each unique
- ratiosComparative numerical relationships
inverse · arcsin · arccos · arctan · hyperbolic · sinh · cosh · tables
Precision angle-measuring instrument
- sextantMaritime angular measurement device
- triangulationLocation via three points
- benchmarkStandard for comparison
- baselineStandard for comparison
station · traverse · leveling · topography · cartography · geodesy · astrolabe · transit
Units of measurement
- radiansAngle measurement units
- acuteIntensely severe or perceptive
- obtuseLacking mental sharpness
- rightMorally proper or entitled
complementary · supplementary · vertex · bisect · adjacent · opposite · hypotenuse · inclination
Fixed method or notation
- equationMathematical equality assertion
- theoremDemonstrated logical conclusion
- proofDemonstration of truth
- PythagoreanOf ancient Greek mathematics
identity · law · solve · compute · interpolation · logarithm · approximation · numerical
All sides unequal
- isoscelesTwo sides match
- equilateralHaving all sides congruent
- hypotenuseLongest right-triangle side
- legsLocomotion appendages below torso
vertices · sides · inscribed · circumscribed · congruent · similar · oblique · right-angled
sine
Opposite over hypotenuse
- cosineRatio in triangle math
- secantTrig ratio, 1/cos
- identitiesWhat makes each unique
ratios · inverse · arcsin · arccos · arctan · hyperbolic · sinh · cosh · tables · values
theodolite
Precision angle-measuring instrument
- sextantMaritime angular measurement device
- triangulationLocation via three points
- benchmarkStandard for comparison
baseline · station · traverse · leveling · topography · cartography · geodesy · astrolabe · transit · rangefinder
degrees
Units of measurement
right · complementary · supplementary · vertex · bisect · adjacent · opposite · hypotenuse · inclination · elevation
formula
Fixed method or notation
- equationMathematical equality assertion
- theoremDemonstrated logical conclusion
- proofDemonstration of truth
Pythagorean · identity · law · solve · compute · interpolation · logarithm · approximation · numerical · solution
scalene
All sides unequal
- isoscelesTwo sides match
- equilateralHaving all sides congruent
- hypotenuseLongest right-triangle side
legs · vertices · sides · inscribed · circumscribed · congruent · similar · oblique · right-angled · altitude
trigonometricalalgebraic
Relating to variable mathematics
arithmetic · statistical · geometric · topological · probabilistic
trigonometricalqualitative
Relating to characteristics, not quantities
approximate · informal · intuitive · rough · imprecise
- trigonometric functionsRatios relating angles to sides