spin echo simulation by Maxim Vedenyov

NMR, 90,180 deg rotations (spin, echo, nmr)

h=create_3d_arrow(r,v,varargin)

w=update_3d_arrow(h,r,v,varargin)

test_res_many.m

Nuclear magnetic resonance simulation by Maxim Vedenyov

In classics approximation (nmr, nuclear, magnetic)

h=create_3d_arrow(r,v,varargin)

w=update_3d_arrow(h,r,v,varargin)

make_gif.m

video from random points by Maxim Vedenyov

probability controled by frames of video (rejection sampling, video, random)

from_gif.m

from_gif_to_avi.m

from_gif_to_gif.m

Plasticine simulation by Maxim Vedenyov

Plasticine circle by its own mass compressed on table. 2d (plasticine, simulation, 2d)

test1.m

test2.m

test3.m

Simplex and random rotation by Maxim Vedenyov

generates regular simpex cartesian coordinates (simplex, random rotation)

V=simplex(N)

an=random_unit_vector(varargin)

random_rotation.m

Waveform Generator GUI by Maxim Vedenyov

Generate waveformed signal and play it. Interactive GUI with movable datapoints. (waveform, gui, signal processing)

Waveform Generator GUI

bdf(ha,hfl,uf)

hfl=create_marker(ha,x,y,r,c,uf,no)

Flatulence sound generator by Maxim Vedenyov

sawtooth signal + High Pass filter = fun (fun hp sound)

run_me

interactive_curve

Mandelbrot set, animated zoom by Maxim Vedenyov

output: avi or gif (mandelbrot set, zoom, fractal)

hf=figure1

mandelbrot.m

mandelbrot2.m

Mandelbrot set, vectorized, simple by Maxim Vedenyov

done with meshgrid function and complex numbers (fractal, mandelbrot, set)

mandelbrot.m

Recaptcha audio recognition, 1-4 July 2012 by Maxim Vedenyov

Explaned how audio recaptcha was recognized. Time domain method. (dsp, sound, recaptcha)

[op sg sws]=find_optimums(s,dz,no)

op=find_maximums(s,dz,no)

test189_recognize3_many.m

vibrating string simulator by Maxim Vedenyov

Possible to set inital position, velocity, friction. (vibrating string, simulator, realtime)

a=to_limits_2(a,L1,L2)

add_to_buffer(src,eventdata,Fs,ao,pso)

audio_only(handles)

Waveform Generator GUI 2 by Maxim Vedenyov

Generate waveformed signal and play it. Interactive GUI with movable datapoints. (awg, waveform, dsp)

[a b]=calulate_harmonics(nh,T,x,y,cs,sn)

add_to_buffer(src,eventdata,Fs,ao,po,pso,ic)

open_device(po,Fs,ic,nblocks,margin)

Interactive curve class by Maxim Vedenyov

change curve by markers drag-and-drop (interactive, curve, interpolation)

example4(varargin)

ic=example3

interactive_curve

Equalizer, audioplayer, GUI by Maxim Vedenyov

Possible to change equalizer during playing (dsp, eq, equalizer)

[b a]=get_high_shelving_filter(g,Q,f,Fs)

[b a]=get_low_shelving_filter(g,Q,f,Fs)

[b a]=get_peak_filter(g,Q,f,Fs)

Nintendo game&watch Egg - EG 26 simulator by Maxim Vedenyov

Game a and game b simulated, with sound (nintendo, gamewatch, egg)

keyfig(src,evnt)

ns=score2simultanious(score,game_type)

orv_new=no_repeat(orv)

2d diffusion simulation, GUI by Maxim Vedenyov

points with random step each frame of time (diffusion, simulation, random walk)

run_me(varargin)

PI-controller for inverted pendulum by Maxim Vedenyov

animated, with derivation in jpg-image (pi, pid, controller)

test1.m

test1_movie.m

test1_movie_gif.m

Inverted pendulum with oscillated base by Maxim Vedenyov

aka Kapitsa's pendulum (animation, inverted pendulum, oscillated base)

test1.m

test1_movie.m

test1_movie_gif.m

How to think vector, tutorial by Maxim Vedenyov

no for loops logical indexing bsxfun (tutorial, think vector, think vectorized)

circle_for_loop.m

circle_vectorized_code.m

inside_circle_vectorized.m

solar system formation 2d by Maxim Vedenyov

2d balls with friction and gravitations (solar system, formation, 2d)

F=calulate_forcies(r,n,G,idm,al,v)

[id id2 nn]=invers_distancies(r,n)

[r v n]=delete_far_points(r,v,rmx,n)

find graph conected components by Maxim Vedenyov

[labels roots] = graph_connected_components(connection_matrix) (graph, connected components, breadthfirst search)

graph_connected_components(C)

zz_test_graph_connected_components.m

zz_test_graph_connected_components_picture.m

Computer plays Tetris by itself by Maxim Vedenyov

Some not perfect AI used. (tetris, ai, game)

[G nl dl]=delete_solid_line(G,nl)

[G ym]=put_block(G,bk,x)

[bk bkn]=random_block

Rose curves by Maxim Vedenyov

plots rose curves, rho=cos(k*theta), k is rational (rose, curve, rational)

rose_curves.m

sound compression by optimums by Maxim Vedenyov

compress and reconstruct, about 4 times copression for speech sound. (compress, mp3, psychoacoustic)

[op ismax]=find_all_optimums(s)

[z isrise]=find_zeros(s)

opa=decimate_optimums(z,op,opv)

3d balls dynamics by Maxim Vedenyov

Simulation of balls collisions. Balls are same. Elastic collisions. No gravity. (3d, elastic collisions, balls)

D=distances(r)

V=strikes_processing(r,V,dst2,trind,n1a,n2a,d2)

V=strikes_processing_2balls(r,V,dst2,trind,n1a,n2a,d2)

snake evolution, GP by Maxim Vedenyov

Genetic programing example at snake evolution simulation. (evolution, snake, simulation)

P=mutation(P,psz,prm,h,tt,nn,loe,Lc)

P=random_population(psz,h,tt,nn,loe,Lc)

P_new=crossover(P,ii,psz,htt)

find zeros, local maximums, loacal minimums by Maxim Vedenyov

3 functions: [z isrise]=find_zeros(s); mn=loacal_minimums(s); mx=loacal_maximums(s); (zero, root, local maximum)

[z isrise]=find_zeros(s)

op=loacal_maximums(s)

op=loacal_minimums(s)

find sequences by Maxim Vedenyov

Finds sequences of repeated elements in array (find, sequence, array)

[i1a i2a]=find_sequences(b,n)

Global tsunami simulation GUI by Maxim Vedenyov

It is wave equation on sphere surface. Land influence neglected. There are colormap and lands veiw. (tsunami, 2012, wave equation)

an=random_unit_vector(varargin)

button_clb(hObj,event,ht,topo,hs,hsl)

set_clb

sea level changer GUI by Maxim Vedenyov

change sea level and see how it change land shape (sea level, gui, land)

button_clb(hObj,event,ht,topo,hs,hsl)

slider_clb(hObj,event,ht,topo,hs)

deluge.m

point fall and plates by Maxim Vedenyov

point fall free and strike plates randomly distributed. (point fall plates gra...)

point_fall.m

point_fall_movie.m

point_fall_old.m

masses and rods move simulations by Maxim Vedenyov

animation, Lagrangian mechanics used (masses, rods, move)

zz_tmp_2.m

zz_tmp_2_movie_several.m

Travelling salesman problem with Genetic algorithm by Maxim Vedenyov

GUI and no GUI versions, with description in docx file (evolution, ga, genetic algorithm)

gch=insert_begining_slow(g1,g2,cp)

gch=insert_begining_slow(g1,g2,cp)

ii=roulette_wheel_indexes(m,prn)

2d bin packing problem with genetic algorithm by Maxim Vedenyov

With mutations, crossover, ect. With animation (bin packing problem, genetic algorithm, mutation)

ii=roulette_wheel_indexes(m,prn)

ga_2d_box_packing.m

ga_2d_box_packing_movie.m

lagrangian mechanics, 2 points conected with rod by Maxim Vedenyov

with formulas in docx file (lagrangian, rod, mechanics)

zz_2_obj_lagrangian_test.m

speech drum machine by Maxim Vedenyov

record your sounds and play it in sequenser to get music. (drum machine, microphone, sound)

load_clb

pl

rec(yc)

Camouflage evolution simulation with Genetic algorithm by Maxim Vedenyov

4x4 images dissapear on background. (camouflage, evolution, simulation)

ii=roulette_wheel_indexes(m,prn)

camouflage_ga.m

camouflage_ga_avi.m

Reverberation GUI by Maxim Vedenyov

Add up to 5 echos to record from microphone (reverberation, echo, recodring)

pl

rec

step(n,dvl)

speech oscilloscope by Maxim Vedenyov

Synchronized continuous display of waveform of your speech from microphone. (speech recognition, microphose, oscilloscope)

hpcb

lpcb

pau

2d liquid simulation by Maxim Vedenyov

in rectangle without air. (liquid, simulation, 2d)

[V,C,N]=prepare_cells(a,b,r)

liquid_2d_rectangle.m

liquid_2d_rectangle_gif.m

home made turntable by Maxim Vedenyov

Transforms mouse motion to sound to make scratch effect. (home made, turntable, scratch)

add_to_buffer

stp

run_me.m

potential flow by Maxim Vedenyov

Object can be drawn. Solve as electrostatic task. (cfd, fluid dynamics, potential flow)

P=perimeter(r,N)

get_na(varargin)

get_u_v(varargin)

honeycomb evolution by Maxim Vedenyov

get hexadron tessellation using random search (evolution, honeycomb, bee)

L=segment_rectange(a,b,r)

rcr=cross_perimeter(a,b,r)

honeycombs.m

Length of cross of segment and rectangle by Maxim Vedenyov

If segment is outside rectangle then return 0 (segment, cross, rectangle)

L=segment_rectange(a,b,r)

rcr=cross_perimeter(a,b,r)

zz_segment_rectange_test.m

minimize ratio perimeter/sqrt(area) of a random shape by Maxim Vedenyov

Random search used. Result is circle of cause. (polygone perimeter, random search, fixed area)

P=perimeter(r,N)

minimal_perimeter.m

minimal_perimeter_avi.m

Spanning tree gui by Maxim Vedenyov

spanning tree for randomized nodes with range. (spanning tree, graph, breadthfirst search)

main(varargin)

randomize_clb(isrand)

self-made stroboscope with microphone by Maxim Vedenyov

GUI for the stoboscope. FFT spectrum, detect frequency, generate drive signal. (stroboscope, selfmade, string)

add_to_buffer

piece_processing

stroboscope(varargin)

Time-lapse walk by Maxim Vedenyov

Time-lapse walk, 10 sec video (timelapse, walk, mounting)

fast

key_pr

next

k indexes from 1:n by Maxim Vedenyov

Return matrix of all possible k indexes, it is C(n,k) variants (combination, binomial coefficient, variants)

ind=all_combinations(n,k)

solve 2d wave equation with FDM by Maxim Vedenyov

With 4 visualizations: colormap, surface, refraction, reflection (visualization, conv2, 2d)

as_colormap.m

as_colormap_movie.m

as_surface.m