what is the difference between normal and prependicular
Answers
Answer:
Normal is the ray which fall on any other line at any angle but perpendicular is line which fall at another line at 90degree
Answer:
hey here is your answer
There are different kind of contexts you use term normal in mathematics. You often use perpendicular in case of two or three dimensional geometry, and in hi-dimensional spaces (e.g. infinite-dimensional) a term orthogonal is more common. On the other hand in the context of vectors, normal usually means also that the vector is of unit length, however this is not a must (but it is for example if you speak about orthonormal base).
There is yet another related meaning in computer graphics, where normal is the direction which you would use to reflect the light. This can be a vector perpendicular to rendered face, but for nice effects you use one perpendicular to the original surface, not its approximation. Also, there is bump mapping technique that lets you change the normal vectors and achieve look of some kind of wrinkles and bumps.
Finally, e.g. in topology or group theory term normal means something completely different.