120 results for “ip”
Multiply numerators and denominators straight across.
Divide by multiplying by the reciprocal (flip and multiply).
Two equal ratios; solve using cross multiplication.
Parentheses, Exponents, Multiply/Divide, Add/Subtract.
Gratuity as a percentage of the bill.
The multiplicative inverse of a number.
A number multiplied by itself.
A number multiplied by itself three times.
Multiplying powers with the same base adds the exponents.
Raising a power to a power multiplies the exponents.
Multiply two binomials: First, Outer, Inner, Last.
A negative exponent means reciprocal.
Reciprocal of the average of reciprocals.
A negative exponent gives the reciprocal.
Area enclosed by an ellipse.
Secant and cosecant as reciprocals.
Reciprocal of cosine.
Reciprocal of sine.
Reciprocal of tangent.
Constants factor out of a derivative.
Antiderivative of the reciprocal function.
Measures how two variables vary together.
Probability of both independent events occurring.
If n items go into k containers, some container holds at least this many.
Multiply every entry of a matrix by a scalar.
The identity matrix leaves any matrix unchanged under multiplication.
Volume of the parallelepiped spanned by three vectors.
Multiplying by the identity leaves a matrix unchanged.
Power dissipated in an electrical component.
Force needed to keep an object in circular motion.
Inward force needed for circular motion.
Buoyant force equals the weight of fluid displaced.
Faster-moving fluid has lower pressure (energy conservation in flow).
Planets orbit the Sun in ellipses with the Sun at one focus.
Position and momentum cannot both be known with unlimited precision.
Buoyant force equals the weight of displaced fluid.
Pressure applied to a confined fluid transmits undiminished.
Buoyant force equals weight of displaced fluid.
Laminar flow rate through a pipe.
Limit on knowing position and momentum together.
Power dissipated by a component.
Reciprocals of parallel resistances add.
Reciprocals of series capacitances add.
Relationship between acidity and basicity at 25°C.
Fat-distribution health indicator.
Body-shape ratio linked to health risk.
Every ingredient expressed relative to flour weight — the backbone of bread recipes.
Rescale each ingredient for a different number of servings.
Total recipe cost divided across the number of servings.
Total fuel needed is the fuel-burn rate multiplied by flight time.
Latest date a deferred defect must be fixed: the discovery date plus the Minimum Equipment List category interval. The day of discovery is “day zero” and is not counted.
Total drag coefficient is the sum of parasite drag and lift-induced drag — the fundamental performance relationship for an airframe.
Thrust horsepower is the engine's brake horsepower multiplied by propeller efficiency — the power actually converted to thrust.
Interest earned on principal at a simple rate.
Value of principal compounded n times per year.
The total profit expected from a customer over the whole relationship.
How much total output rises from an initial change in spending.
Total impact of spending given marginal consumption.
Flip a quoted rate to express it from the other currency’s point of view.
The monetary value of a one-pip move for a given trade size.
Gratuity based on a bill amount.
Total fuel cost for a trip.
Adjust ingredient quantities for a different number of servings.
Per-person share of a bill including tip.
A repeating event's period is the reciprocal of its frequency.
Least common multiple via the greatest common divisor.
How efficiently a data centre uses energy, versus overhead like cooling.
Frequency shift of an echo from a moving target; the factor of two accounts for the round trip to the target and back.
Overall positioning error is the geometry factor (dilution of precision) multiplied by the per-satellite ranging error.
Total revenue is the selling price multiplied by the number of units sold.
Annual recurring revenue annualises the monthly recurring revenue of a subscription business.
Overtones of a note are whole-number multiples of the fundamental.
Frequency is the reciprocal of the wave's period.
Lowest note of a pipe open at both ends (like a flute).
Bitwise XOR of message and key; XOR again with k to decrypt.
A good hash flips about half its output bits when one input bit changes.
Shift each letter forward by k positions.
Aperture, shutter and ISO trade off to keep exposure constant.
Energy that brakes must dissipate to stop a moving car.
A floating ship displaces its own weight in water.
Depth of hull below waterline from displacement and waterplane area.
Stability measure; positive GM means the ship rights itself.
Fuel burn rises with the cube of speed for a ship.
Max purchase price for a flip using the 70% rule.
Every ingredient expressed relative to the flour weight — the backbone of bread recipes.
Scales every ingredient up or down for a different number of servings.
Single multiplier applied across a whole recipe when changing batch size.
Share of customer demand met immediately from stock.
Total shipment cost spread across the units delivered.
How long a shipment or container sits idle at a facility.
Reduction in a steel pipe string's weight when submerged in drilling mud.
Mud volume per minute from a triplex pump's bore, stroke and speed.
Volume of oil originally in a reservoir (in stock-tank barrels).
Percentage of oil in place that can actually be produced.
Internal volume of pipe per foot of length (barrels per foot).
Fraction of annular velocity effectively lifting cuttings out of the hole.
Area under an irregular boundary using parabolic strips.
Area under a boundary by summing trapezoidal strips.
Number of usable IPv4 addresses in a subnet with an n-bit prefix.
A Vedic sutra for multiplying numbers close to a base (10, 100, 1000, etc.). Works by finding how far each number is from the base.
A general Vedic multiplication method that works for any two numbers. Uses vertical and crosswise multiplication patterns.
Instantly square any number ending in 5. Multiply the tens digit by (tens digit + 1), then append 25.
Instantly multiply any two-digit number by 11 by splitting and adding the digits.
x% of y = y% of x. When one direction is hard, flip it! This works because (x/100)×y = (y/100)×x.
Multiply by 10 and divide by 2 (or vice versa) for instant results.
Split large multiplications into simpler parts using the distributive property.
A quick way to verify multiplication and addition results by checking digit sums modulo 9.
Multiplying any number by a string of nines is instant: subtract 1 from the number for the left part, then take the complement for the right part.
When numbers are near a convenient working base that is a multiple of a power of 10, use a proportional base to simplify the multiplication.
Multiply by 10 and subtract the original number — much faster than multiplying by 9 directly.
Since 25 = 100 ÷ 4, multiply by 100 and divide by 4 for instant results.
Multiply by 10, then add half of that — because 15 = 10 + 5 and 5 is half of 10.
When one factor is even, halve it and double the other to reach an easier multiplication.
For numbers a little above 100, use the surplus from 100 to multiply almost instantly.
Multiplying by 4 is doubling twice; by 8 is doubling three times. No memorised tables needed.
Multiply two binomials by combining First, Outer, Inner, Last terms.
Two numbers equally spaced around a middle value m multiply to m² − d², using the difference of squares.
Find 10% first, then build 15% or 20% from it in your head.
Multiply miles by 1.6 for km, or divide km by 1.6 for miles. Consecutive Fibonacci numbers are handy approximations.