Calculator calculates the date of the initial date and the number of working days. Taking into account weekends, holidays and weekend shifts at work days, according to the published decrees of the government of the Russian Federation. Created by user's request.
Displays Gregorian calendar date corresponding to Julian Day Number
This online calculator computes the result of addition/subtraction of the given number of days to the given date.
This online calculator outputs day of week for given date
Recalculation of density of oil for different temperature and pressure values. Formulas are taken from Russia's GOST R 8.610-2004. "State system for ensuring the uniformity of measurements. Density of oil. The tables for recalculation" standard
Calculates number of days between two dates taking in account the date of transition to Gregorian calendar.
This calculator calculates the determinant of 3x3 matrices
This online calculator computes determinant of a matrix, using it's definition
This calculator determines dew point from given temperature and relative humidity of air
This article is about relation between image size in pixels and photographic print size. First, it recommends photographic print size for given digital image dimensions in pixels. Second, it finds resulting pixels per inch value for printed digital image with known linear and pixel dimensions.
Online calculator which determines first derivative of a function
Esta calculadora en línea encuentra dimensiones de pantalla - altura y ancho, dado el valor diagonal y proporción de aspecto.
Calculates error of direct measurements for given measured value series and confidence interval.
Calculation of frequency and wavelength change for a moving source
Description and example of the double exponential smoothing
Calculates ellipsoid and spheroid volume and surface area.
This online calculator parses emails from block of text using regular expression
Energy unit converter (joules, kilowatt-hour, kilogram force per meter, horsepower per hour, kilocalories)