60 results for “eas”
Increase or decrease of a value as a percentage.
Value after a percentage increase.
Value after a percentage decrease.
Measure of each interior angle of a regular polygon.
Measure of one interior angle of a regular polygon.
Measure of one exterior angle of a regular polygon.
The derivative of the first derivative; measures concavity.
Measures linear correlation between two variables.
Measures how two variables vary together.
Measures the spread of a random variable around its mean.
If n items go into k containers, some container holds at least this many.
Measures similarity between two vectors by the angle between them.
Distance measured along axes at right angles (taxicab geometry).
Measures the uncertainty or information content of a distribution.
A line from a planet to the Sun sweeps equal areas in equal times.
The entropy of an isolated system never decreases.
Total entropy of an isolated system never decreases.
Efficiency measure of a refrigerator or heat pump.
Condition for a balanced measurement bridge.
Heat absorbed or released at constant pressure.
Complete combustion of a hydrocarbon in oxygen, releasing energy and producing carbon dioxide and water.
Measures species diversity in a community.
US Navy body-fat estimate for men from tape measurements.
Ratio of stress to strain; measures material stiffness.
Quick estimate: true airspeed increases about 2% per 1000 ft of altitude above indicated airspeed.
Drag due to lift, decreasing with higher aspect ratio and span efficiency.
Standard atmosphere temperature decreases about 2°C per 1000 ft up to the tropopause.
Altitude derived from the ratio of sea-level to measured pressure.
The ratio of available thrust to aircraft weight — a key measure of acceleration and climb capability. Fighters exceed 1; airliners are around 0.25–0.35.
Equivalent airspeed relates true airspeed to sea-level dynamic pressure through the density ratio σ = ρ/ρ₀.
Increase over cost as a percentage.
Liquidity measure of short-term solvency.
Leverage measure comparing debt to equity.
A liquidity measure of whether a firm can cover its short-term obligations with short-term assets.
Measures financial leverage by comparing borrowed funds to owner-supplied funds.
Stringent liquidity measure excluding inventory.
National output measured as total spending by households, firms, government and net exports.
Measures price levels relative to a base year.
The nominal rate adjusted for price levels, measuring relative purchasing power.
Earth's rotation period measured against the stars, not the Sun.
Core step of the Gregorian algorithm locating the Paschal full moon.
Energy released by a quake of Richter magnitude M.
Approximate energy released by an earthquake.
Least common multiple via the greatest common divisor.
Measures the angle between two vectors; 1 means identical direction.
Measures impurity/uncertainty of a set; used to split decision trees.
Measures how one probability distribution differs from a reference distribution.
Chance of experiencing at least one flood of return period T over n years.
The modern earthquake magnitude scale, based on the seismic moment released.
DME measures the direct (slant) distance to the beacon; the true ground distance is found by removing the height component.
To digitise an analogue avionics signal without aliasing, the sampling rate must be at least twice the highest frequency present.
Measured distance to a GPS satellite from signal travel time, biased by the receiver clock error — hence “pseudo” range.
Net revenue retention measures recurring revenue kept from existing customers, including expansion, contraction and churn.
Transform numbers with large digits (6-9) into "vinculum" form using complements from 10, making calculations easier.
Use the identity (a+b)(a-b) + b² = a² to square numbers quickly by going to the nearest easy number.
Multiply by 10 and subtract the original number — much faster than multiplying by 9 directly.
When one factor is even, halve it and double the other to reach an easier multiplication.
Add the big place values first (left to right) instead of the traditional right-to-left carrying — easier to hold in your head.
Any percentage can be built from 10%, 5%, and 1% — quick to find and easy to combine.
a² − b² = (a + b)(a − b). Turns a subtraction of squares into an easy product.