Recent content by jam12

anyone?

Hello guys, I am new to maple software and I am stuck on solving a simple transcendental equation: sin(x)=x/2 over the range x=-3,...,3. I know how to solve this equation for individual intervals, for example: > fsolve(sin(x) = (1/2)*x, x = -3 .. -1); >...

Homework Statement Hello I wanted clarification on freeman's law and the Tully fisher relationship. Am i correct to say that the tully fisher relationship that states L=kv^4 where L=luminosity of galaxy and v= max rotational speed of galaxy. only applies to edge-on spiral galaxies...

Homework Statement I would like to know what the cohesive energy of the crystal is. Homework Equations The Attempt at a Solution Is it the energy required to break the atoms free from a crystal (ie into free atoms with no potential)? So would it be the minimum energy of a...

Thanks Mark44 for your explanation, very much appreciated. and thanks DH for keeping up with my mistakes.

DH you genius, i just had to do 10 to 10.0 but why? i spent four hours on this piece of sh**

how can I use cast? eg would it be r=pow(c,n/10); r=cast(r); Do i need to include a library for this? i tried this and it didnt work

I am quite new to programming, i am using linux server connected to our campus. It has glut installed etc. Also math library is included right above main() (beginning of the whole code) Counter is just a single function in the whole code.

i have included math library and gl glut library in program, so when i compile, these are included. All warnings are on

scrap my first post, please read the second one and by the way when counter is called, the c variable is 80.62782 (changes depending on other parts of program).

thanks changed that to %d but its still no use, basically my for function is scanning a grid in integer steps and grid function must take integer values as arguments actually that above statement is not true. The following works perfectly: void counter (double c) { FILE *fp; char...

Hi guys, i am using the C language and have created the following function: void counter (double c) { FILE *fp; char output[]="output.xls"; int n,p=0; int r=0; int i,j; float x=0; fp=fopen(output,"w"); fprintf(fp,"rmax\tnumber of particles within rmax\r\r\n"); for(n=1;n<=10;n++)...

Looking at the squarewave function expression I see my function will be a sum of heaviside step functions? and i can change the period according to what i need. Many thanks

thanks, I've tried but its no use since i need a function that turns on and of and on etc an infinite number of times

Homework Statement I have that a oscillating mass undergoes shm. It is accelerated (forced oscillation) by 1ms^-2, for time pi/2 as it goes through the origin and then accelerated by -1ms^-2 for another time pi/2, then it is at the origin after the second acceleration. I need to determine...