How are variables used in astronomy?

Jun 5, 2018 ... var width = 100; let height = 200; const key = 'abc123';. var. What is unique about var ? It can be reassigned and updated. For example ... Feb 12, 2019 ... VAR stands for video assistant referee. It is actually a team of three people who work together to review certain decisions made by the main ... The invention of VAR in football has been accredited to the Royal Netherlands Football Association (KNVB) and their 'Refereeing 2.0' project, launched in 2013. Oct 8, 2018 ... Since Var(Y)=Cov(Y,Y), a negative sign on the variance "pulls out twice" which cancels. (Or if you prefer a more probabilistic proof, the ... Aug 2, 2014 ... VAR is the deviation of magnetic north and true north and is relative to your position on the planet. A video assistant referee (VAR) is a match official, with independent access to match footage, who may assist the referee only in the event of a 'clear and ... VAR stainless steel is a premium material that offers superior purity, homogeneity, and mechanical properties compared to conventional stainless steel. A value-added reseller (VAR) is a company that resells software, hardware and other products and services that provide value beyond the original order ... Jan 12, 2008 ... /var/log/ppp.log is supposed to contain log entries from the local2 facility. (A syslog facility is just a category of entries, used to sort them into ... Value at risk (VaR) is a measure of the risk of loss of investment/capital. It estimates how much a set of investments might lose (with a given probability) ...