Recent content by 1alph1

1. MATLAB Matlab Matrix Multiplication Query in an fft application

Hey everyone, first of all id just like to clarify this isnt a homework or coursework related problem, its part of my personal MatLab learning for future years. I obtained a nice little siganls and systems question off a friend, it looked fairly simple but ive come across a problem which i cant...
2. Diagonal line plotting in C

ok i see, yes thats a good formula but im not sure how it would be implemented into the code??? i have sex x = x1 this wouldnt work with this formula, i could pre determine the graident from the four points but im not sure what to do to get y2 to move vertically while y1 remains constant??
3. Diagonal line plotting in C

this is quite a simple problem,what i am trying to do is plot a line between any two points on my image, i can plot horizontal lines fine. below is the part of my code to for the line... int x1 = 92, y1 = 35, x2 = 150, y2 = 55; //line between two points for (x = x1; x <= x2; x++)...
4. 2D image generator using C and nxview

Thanks so much for the help, i was wondering if you could check out my updated version where i took your advise its also in programming and is called 2D image generator and modification using C, updated part 2 (drawing a line) thanks again!!
5. 2D image generator and modification using C, updated part 2 (drawing a line)

hello, Part of a little project of mine consists of writing C code to build a image file in .ppm format which can be viewed by the simple program xnview. The image size is going to be 256 x 128. My code below generates a image with a smooth transtiton/graident between very dark red to light...
6. 2D image generator using C and nxview

hello, Part of a little project of mine consists of using arrays, loops and writing files, in C to build a image file in .ppm format which can be viewed by the simple program xnview. The image size is going to be 256 x 128. I can use notepad to create simple images of flags ect. but am...
7. Simple Functions Problem

Homework Statement The relationship between the input x(n) and the output y(n) for the discrete System A is described by the expression y(n)=2x(n)-3x(n-1)+x(n-1) What is (i) the impulse response function h(n)? (ii) the frequency response function H(f)? (iii) the amplitude...