Write a function my det that takes an nxn square matrix and computes its determinant without using matlab built-in function dot.

Your program will make use of long long int variables for all calculations. note: the use of long long int requires that you have c++11 support. you should have this automatically if you are using a newer version of visual studio. the support is there for gcc as well, but you may need the -std=c++11 or -std=c++0x compiler flag. you first need to read in the total number of seconds. there is no prompt for the read (that is, you just do the cin without using a cout to display a prompt). this is going to seem a little strange when you are running your program in your ide

The basic work area of the computer is it screen that you when you first fire up your computer

Need fast im timed in a paragraph of 125 words, explain at least three ways that engineers explore possible solutions in their projects.