Transfer function

Transfer function
From time domain to frequency domain by using calculation of the FFT (fast Fourier transform )FFT can show you the transfer function frequency quickly.
Transfer function is the degree rate of income volume and outcome one.
For example, one student try to learn by heart 100 words of English test,some can
memorize the 20 words, someone can do 50, some can do 90 words and so on. it depends on students effort and capability. if the student 90 words memorization capable form of wave in transfer function show vertically keen shape in crosser to center.if he can memorise the words 10 words wave of shape looks like dull shape. transfer function is beeg used daily life for example the deviation value for education, such as student is going to decide which high school and university can enter by evaluating the deviation value.it is is important to entrance examination. and more products quality. it is used frequently product standard in factory.
any way it is very simple. in short transfer function degree rate of income and outcome.