# Mathematics

## Mathematics Involving in LCR Circuit

I will first review the mathematical topic Complex Number, and then I will use the concept of the complex number to solve the differential equation involving the RLC circuit. Review of Complex Number Generally, we write complex number as . We, electrical engineers, had already used the symbol I for current, so we use for …

## Can we divide vector by vector?

No, we can not divide vector by vector. Here is possibly the simplest explanation. To explain this consider the dot product of two vectors and which gives the scalar . Here doesn’t equal to , and is an unknown vector. Considering division as the inverse of multiplication, we have to find such that it gives …