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2 tsp 1 ⁄ 3: 9.85784 tablespoon: tbsp. or T. 1 ⁄ 16 cup 1 ⁄ 2: 14.7868 2 tablespoons = 1 fluid ounce fluid ounce: fl.oz. or oz. 1 ⁄ 8 cup 1 29.5735 2 fluid ounce = 1 wineglass wineglass‡ wgf. 1 ⁄ 4 cup 2 59.1471 2 wineglasses = 1 teacup gill‡ or teacup‡ tcf. 1 ⁄ 2 cup 4 118.294 2 teacups = 1 cup cup: C 1 ⁄ 2 pint 8 236.588 2 ...
The golden ratio φ and its negative reciprocal −φ −1 are the two roots of the quadratic polynomial x 2 − x − 1. The golden ratio's negative −φ and reciprocal φ −1 are the two roots of the quadratic polynomial x 2 + x − 1. The golden ratio is also an algebraic number and even an algebraic integer.
[1] [2] One reason for this is that they can greatly simplify differential equations that do not need to be answered with absolute precision. There are a number of ways to demonstrate the validity of the small-angle approximations. The most direct method is to truncate the Maclaurin series for each of the trigonometric functions.
Similarly / = is a constructible angle because 12 is a power of two (4) times a Fermat prime (3). But π / 9 = 20 ∘ {\displaystyle \pi /9=20^{\circ }} is not a constructible angle, since 9 = 3 ⋅ 3 {\displaystyle 9=3\cdot 3} is not the product of distinct Fermat primes as it contains 3 as a factor twice, and neither is π / 7 ≈ 25.714 ∘ ...
Dimensionless quantities, or quantities of dimension one, [1] are quantities implicitly defined in a manner that prevents their aggregation into units of measurement. [ 2 ] [ 3 ] Typically expressed as ratios that align with another system, these quantities do not necessitate explicitly defined units .
40 g 1 / 8 turn π / 4 or 𝜏 / 8 rad 45° 50 g 1 / 2 π or 𝜏 turn 1 rad approx. 57.3° approx. 63.7 g 1 / 6 turn π / 3 or 𝜏 / 6 rad 60° 66 + 2 / 3 g 1 / 5 turn 2 π or 𝜏 / 5 rad 72° 80 g 1 / 4 turn π / 2 or 𝜏 / 4 rad 90° 100 ...
[18] [19] Today, the degree, 1 / 360 of a turn, or the mathematically more convenient radian, 1 / 2 π of a turn (used in the SI system of units) is generally used instead. In the 1970s – 1990s, most scientific calculators offered the gon (gradian), as well as radians and degrees, for their trigonometric functions . [ 23 ]
The cup is a cooking measure of volume, commonly associated with cooking and serving sizes.In the US, it is traditionally equal to one-half US pint (236.6 ml). Because actual drinking cups may differ greatly from the size of this unit, standard measuring cups may be used, with a metric cup commonly being rounded up to 240 millilitres (legal cup), but 250 ml is also used depending on the ...