Recent content by rhia

I can't think of any better place to ask this. I believe most of people here have overcome many obstacles to become what they are. How do you keep yourself going when life gets tough? What inspires you to overcome the difficulties? regards rHia

Thanks for reply. Can you give an example to show how it works? I am finding it difficult to visualize.

How is it different from the real differentiation and integration? There are so many details that I am finding it hard to understand. Is there a better way to understand especially Integration of Complex functions?

I would appreciate if someone could explain Conformal Mapping using Complex Analysis using an example. I get the rough idea but have no clue how complex analysis comes into the picture. Thank You!

The "low-priced" edition is still on a high side for me. Thanks for helping!

Thanks you all!After reading your replies I feel my approach to learning complex analysys was flawed.Can softwares like mathematica,mathcad,maple,matlab or others help me understand this course better? Unfortunately Visual Complex Analysis by Needham isn't available in my country.

Topics like conformal mappings,residue theorem,series,integrations and the numerous results derived from them.I don't understand what use they are going to be of.

The advanced topics in complex nos are really boring and make no sense. Is there any way I can make them interesting like any software or book which would make it easier and enjoyable?

I think I got it now.Thanks to everybody. The source of confusion was 'off state' which actually is '-ve state' .( hope i am right now!?)

How can there be frequency in off state? off state = no signal =>no freq. Can you give real world examples where cycle is not symmetric? Thanks a lot for helping. Rhia :smile:

I am getting confused between duty cycle and frequency of a pwm. Isn't duty cycle related to frequency? Can someone explain? Thanks & regards

Hi, How is a space probe planned to be fail-proof? And how is the trajectory calculated?Is it easy to do or requires huge calculations?

Is there any way to generate useful electricity which is completely pollution-free?

Thats right...if you solve the problem in the frame of the roller-coaster then centrifugal force will counteract gravity. From the Earth's frame the gravity and reaction force of the seat will provide the centripetal force. So R+mg=mv^2 /r For min v, R=0 i.e. the passengers are not in...

Hi Katerina, Use the vector equation of conservation of linear momentum.The motion in your problem is restricted to a plane so you need to deal with only x and y components of momentum.Steps involved: 1) Choose your system such that total external forces along x and y directions is zero.Only...