Programming Forums > Application Development > C

WalterSlopeboi · Jan 27th, 2008, 4:39 AM

I am new to c programming and I cannot understand the teacher for the life of me. It becomes very difficult to learn this stuff even just by reading. I have this assignment that is due on Tuesday and I was wondering if anybody could help me out. I'd greatly appreciate it...

1. The program asks for the user to input the magnitudes and angles for two vectors, A and B. It then calculates the resultant vector (R) by summing the X- and Y-components of the two vectors, and prints the magnitudes, and angles (with respect to X-axis) of the vectors A, B, and R.

2. The program asks for the user to input the source voltage, E, and resistance of three resistors, R1, R2, R3. If then calculates the equivalent resistance R_equiv, the current, 1, and the power consumed by the circuit, P.

Where do I even begin?

Grich · Jan 27th, 2008, 5:53 AM

Do your own homework.

Salem · Jan 27th, 2008, 5:54 AM

- print the prompts for the questions you want to ask
- read the responses from the user
- print the responses back to the user.

Ensuring that you can perform the initial "Q&A" session with the user, and can read their inputs correctly is a useful first step.

As for the calculations, you need a math reference which explains vector addition and an electronics reference which explains how resistance works. Immediately, a further question then becomes as to how the 3 resistors are wired (in series or in parallel).

Jessehk · Jan 27th, 2008, 9:23 AM

My first question would be what the specific problem is.
Do you understand the math required for each assignment (in which case only the programming is the problem)? If so, write out some pseudo-code for each assignment. At that point, we'll help you convert it to code.

Here's an example of "pseudo-code", it describes what's to be done:

(Toggle Plain Text)

for x : 1 to 10
    read an integer
    print the integer
end

colin mac · Jan 27th, 2008, 10:12 AM

1. See converting from polar to cartesian and from cartesian to polar.

2. See resistors in series or parallel formula, Ohm's law and P = VI.

Jan 27th, 2008, 4:39 AM	#1
WalterSlopeboi Newbie Join Date: Jan 2008 Posts: 9 Rep Power: 0	New to c programming...don't know where to start I am new to c programming and I cannot understand the teacher for the life of me. It becomes very difficult to learn this stuff even just by reading. I have this assignment that is due on Tuesday and I was wondering if anybody could help me out. I'd greatly appreciate it... 1. The program asks for the user to input the magnitudes and angles for two vectors, A and B. It then calculates the resultant vector (R) by summing the X- and Y-components of the two vectors, and prints the magnitudes, and angles (with respect to X-axis) of the vectors A, B, and R. 2. The program asks for the user to input the source voltage, E, and resistance of three resistors, R1, R2, R3. If then calculates the equivalent resistance R_equiv, the current, 1, and the power consumed by the circuit, P. Where do I even begin?

Jan 27th, 2008, 5:53 AM	#2
Grich Hobbyist Programmer Join Date: Sep 2007 Location: Sydney - Australia Posts: 192 Rep Power: 2	Re: New to c programming...don't know where to start Do your own homework. __________________ SYNTAX ERROR ...

Jan 27th, 2008, 5:54 AM	#3
Salem Programmer Join Date: Nov 2007 Posts: 33 Rep Power: 0	Re: New to c programming...don't know where to start - print the prompts for the questions you want to ask - read the responses from the user - print the responses back to the user. Ensuring that you can perform the initial "Q&A" session with the user, and can read their inputs correctly is a useful first step. As for the calculations, you need a math reference which explains vector addition and an electronics reference which explains how resistance works. Immediately, a further question then becomes as to how the 3 resistors are wired (in series or in parallel). __________________ If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.

Jan 27th, 2008, 9:23 AM	#4
Jessehk The Oblivious One Join Date: May 2005 Location: Ontario, Canada Posts: 644 Rep Power: 4	Re: New to c programming...don't know where to start My first question would be what the specific problem is. Do you understand the math required for each assignment (in which case only the programming is the problem)? If so, write out some pseudo-code for each assignment. At that point, we'll help you convert it to code. Here's an example of "pseudo-code", it describes what's to be done: (Toggle Plain Text) for x : 1 to 10 read an integer print the integer end for x : 1 to 10 read an integer print the integer end __________________ Dr. Zoidberg: [ecstatic] I'm going to a movie... with FRIENDS!

Jan 27th, 2008, 10:12 AM	#5
colin mac Newbie Join Date: Nov 2007 Location: Ireland Posts: 19 Rep Power: 0	Re: New to c programming...don't know where to start 1. See converting from polar to cartesian and from cartesian to polar. 2. See resistors in series or parallel formula, Ohm's law and P = VI.

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Programming Forums > Application Development > C

New to c programming...don't know where to start