Lower triangular matrix is a square matrix whose upper off-diagonal elements are zero. It is usually denoted by the capital letter ‘L‘. A square matrix Q = [xij] is said to be lower triangular matrix (LTM) if xij = 0 when i < j. Note: In this matrix, the diagonal and/or lower off-diagonal elements may or may not … Read more
Upper triangular matrix is a square matrix whose lower off-diagonal elements are zero. It is usually denoted by the capital letter ‘U‘. A square matrix P = [xij] is said to be upper triangular matrix (UTM) if xij = 0 when i > j. Note: In such matrix, the diagonal and/or upper off-diagonal elements may or may not be zero. … Read more
Zero Matrix is a type of matrix whose elements are equal to zero. Zero matrix is also known as null matrix. It is generally denoted by capital letter ‘O‘. A matrix O = [xij] is said to be null matrix or zero matrix if xij = 0 for all values of ‘i‘ and ‘j‘. This … Read more
Cables that are usually known as coaxial cable, or simply coax, need crimping to be done before you can use them. This is because these cables are basically used to deliver signals, and are highly sensitive to outside interference. If you use a connector with the cable head, the chances of interference lessen. That’s why … Read more
Unit Matrix or Identity Matrix is a square matrix whose all diagonal elements is 1 and all off-diagonal elements are zero. It is usually denoted by the capital letter ‘I‘. A square matrix P = [xij] is said to be unit matrix or identity matrix if xij = 1 when i = j and xij = … Read more
The diode is a two-terminal electronic component made up of semiconductor materials such as silicon, gallium, etc. It is a unidirectional device i.e. it allows current flow only in one direction. A diode is an uncontrolled device. There are different types of diode. The internal resistance of an ideal diode is considered as zero in … Read more
Like Zener diode, avalanche diode is a semiconductor diode that operates especially in the reverse-biased region. It is a type of PN junction diode having the same symbol as the Zener diode. The avalanche diode is designed in such a way that it can withstand the avalanche breakdown without being damaged by the suddenly and … Read more
Schottky diode is a special type of diode made up of metal and semiconductor materials. The schottky diode is named after the name of the scientist Walter H. Schottky, who had discovered the diode for the first time. This diode is also known as surface barrier diode. It is also known as hot carrier diode. … Read more
Even professional programmers tend to make mistakes while coding. Now imagine if a programmer is writing a 1000s line code and unknowingly ends up making an error at some point in the code; it is then extremely tedious for him/her to find that particular line and rectify his/her mistake. It will be a waste of … Read more
Varactor diode is a type of PN junction diode that behaves as a variable capacitor under varying reverse-biased voltage applied to its terminals. It shows this capacitive effect under reverse biased condition only. It has two terminals i.e. anode and cathode. It is also known by other names such as tunning diode or voltage variable … Read more