Composite functions are made when the output from one function is used as the input of another function. The names of the functions are written next to each other, with the function that is used first ...

Support your confidence in this topic by refreshing your knowledge of substitution and changing the subject of formulae. A function takes an input value, applies a rule to it, and produces an output ...

I developed a calculator using 4x4 matrix keypad as input and used the oled screen as output and for additional function I added a led which will light up when the system shows the result. - ...