. Con esta opción se podrá seleccionar áreas arrastrando el puntero y circulares conjuntamente con la tecla shift

Modern businesses use different technologies to accomplish work tasks

Perform an online search about the booting process of a computer and list all the steps

Use a while-end loop in a script file to calculate the sum of the first n terms of the series: summation sign on the top n bottom k=1 : )^k * k^2 +5k)/3^k show the script file and the two results of n = 10 and n = 20.