Working hours between two timestamps under a weekly schedule with breaks and a holiday list.

Check a list of license ids against SPDX: current, deprecated or unknown, with the modern GNU -only / -or-later form.

Look up an SPDX license exception id such as Classpath-exception-2.0: its name, links and deprecated status.

Search the SPDX license list by name or id fragment, such as gpl or creative commons, with OSI and deprecated flags.

List current OSI-approved SPDX licenses, optionally only FSF-libre ones or those starting with a prefix.

Hargreaves reference evapotranspiration (mm/day) from max and min temperature, latitude and day of year.

Irrigation run time and water volume to apply a depth over an area at a pump or system flow rate and efficiency.

Tire dimensions from size codes like 225/45R17, and speedometer and odometer error when you change to a different size.

Engine displacement in cc, litres and cubic inches from bore, stroke and cylinders; compression ratio and mean piston speed.

Vehicle value year by year by straight-line, declining-balance or your own yearly percentage drops, with total loss.

Estimate quarter-mile time and trap speed from weight and horsepower (Hale), plus a power-limited lower bound for 0-60 mph.

Plants and seeds needed for an area from row and in-row spacing (grid or triangular), with germination allowance.

N-P-K analysis of a dry fertilizer blend from components given as analysis:weight, plus elemental P and K.

ILLUSTRATIVE lime rate estimate to raise soil pH, by texture, product strength and depth. Not a lab recommendation.

Stopping distance from speed: reaction distance plus braking distance on dry, wet, snow or ice, with road grade.

EV efficiency in kWh per 100 miles, miles per kWh, Wh per km and MPGe, range from battery size, and cost versus a gas car.

Trip fuel and cost for legs with different mileage (city, highway), tank range, refuel stops, cost per person and a second car.

Engine RPM at a road speed (or speed at an RPM) from tire size, axle ratio and transmission gear ratios, with a table by gear.

Lease versus buy over the lease term: lease payment from money factor and residual, loan payment, resale equity and net cost.

Grazing carrying capacity in animal unit months from acres, forage yield, use percent and days, with an optional herd check.