Thread: hello, please can i have some urgent help!

alright, sry to be another homework lout,


programmin is not my forte but is one of my modules... i am expected to do this program, however i am baffled. need it done today... so i AM open to bribes. lol.

this should tho, i assume, be very easy for the experienced programmer.


Please do what you can. many many thanks!!



......


For a single cylinder in potential flow, moving with a velocity of magnitude V(infinity), the velocity at any point on the surface of the cylinder is=

v=2V(infiniti)sin(theta)


the pressure coefficient is given by :

C(p) = 1-4Sin^(2)(theta)

pressure coefficient on surface of sphere:

C(p) = 1-9/4Sin^(2)(theta)


(theta) is the angle measured from the direction of the parallel flow to a point on the surface of the sphere.




now, the program.


construct a program for a user who need to calculate the potential flow around a circle and sphere.

Your program sould include the following:

a. A function for calculating velocity and pressure coefficient around a circle.
b. A function for calculating velocity and pressure coefficent around a sphere.
c Program output should be stored in a file specified by the user.

In general here on the forums we don't give out code (especially homework code), unless the OP (that's you), shows us that you have at least tried to do some of it first.

alrite well, i dont know how to do this task
however i can show you the code i have done which was a similar task, for finding the coordinates of an element of a square.



printf("Please enter the element number you wish to know the position of: ");
scanf("%f", &number);

if (number > 25)
printf("\nInvalid element number entered, following data is irrelevant\n");
else
printf("\nThank you\n\n");

if (number < 6)
coa=number;
else
if (number < 11)
coa=(number-5);
else
if (number < 16)
coa=(number-10);
else
if (number < 21)
coa=(number-15);
else
if (number < 26)
coa=(number-20);
else
printf("\nInvalid element value entered, please close program and start again\n\n");

if (number < 6)
cob=1;
else
if (number < 11)
cob=2;
else
if (number < 16)
cob=3;
else
if (number < 21)
cob=4;
else
if (number < 26)
cob=5;
else
printf("Invalid element value entered, please close program and start again\n\n");

co1=(coa-1);
co2=(cob-1);

printf("Co-ordinate 1 = %d,%d\n", co1, co2);
printf("Co-ordinate 2 = %d,%d\n", coa, co2);
printf("Co-ordinate 3 = %d,%d\n", co1, cob);
printf("Co-ordinate 4 = %d,%d\n", coa, cob);
getch();
return 0;

}

(floats are coa etc )

please just show me the way if you don't want to give me code

so much for the help for 2moro... nevermind

i didn't intend to post that code perfectly. I typed it quickly.

it is C++ I am using therefore I am in the correct forum. ...I know cout is easier

just 'fair enough'

nope i don't know how to do it. i posted that code because, i believe an extended approach from my previous work is probably expected of me.