Posted 21 November 2007 - 07:42 PM
I am new to the ClassPad. I can get it to do pretty much what I want except 1 thing.
It will not let me enter an Inverse Polar entry. I get an Invalid Dimmension error.
I can convert polar to Rectangular and vice versa but if I try to divide either into one, it tells me to get lost.
ToRect([10, <(45)]) The "greater than" sign here being the angle sign on the CP. Works.
1/([10,<(45)]) gives dimmension error.
1/([1,1]) same error
Anyone know if this is possible in a CP?
My classmates can do them on thier TIs so I would THINK a CP can do it as well
Inverse polar coordanates are used in figuring Voltage, Current...etc in electronic AC circuits so it should be capable of doing it since that is not an uncommon use of a calculator.
Any help would be appreciated.
Posted 22 November 2007 - 04:59 PM
Posted 26 November 2007 - 03:45 PM
The mistake you made is that you cannot divide a number with a vector!
Well.....TI will do it. If a TI can do it, you'd think a classpad could as well.
My classmates take their TI-89s and do it no problem.
This is supposed to be some whiz-bang engenerring calculator and I cant even use it to find impeadence in an AC circuit.
To find impeadence in a parallel AC circuit:
Impeadence can be written in 2 ways, Polar or Rectangular.
100 @0deg is 100volts at 0 deg phase shift or.....pure resistive
100 @-90deg is 100 volts at a -90 shift or........... pure capacative
100 @+90deg ...same thing but pure inductive
I need to be able to take either polar or rectangular expressions, aka impeaedence, and apply it to the above formula.
Posted 26 November 2007 - 05:02 PM
This is an excerpt from a JPG file I found online.
These calculations are commonplace in the electronic world. If this Casio cannot perform them, it is a MAJOR shortcomming and will make me regret buying this product if I cannot find a way to do this.
Posted 26 November 2007 - 05:38 PM
V = V( |V| , 0? ) = +|V|
there it is........
*Also taken from a JPG online.*
I know it is "possible" to invert a vector in this way. I am beginning to think it is impossible with a CP.
Webmaster....sorry about the duplicates above. I dont see an option to delete posts.
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