Day: July 12, 2019

What PMT stands for in Excel?

What PMT stands for in Excel? What is the PMT function in Excel? The Excel PMT function is a financial function that calculates the payment for a loan based on…

Who invented the negative-positive process?

Who invented the negative-positive process? William Henry Fox Talbot Description: The original negative and positive process invented by William Henry Fox Talbot, the calotype is sometimes called a “Talbotype.” This…