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jcalcf.m function [x,y,t,u,px,py,p] = jcalcf(X,Y,P) is a function version of jcalc, which allows arbitrary naming of variables.

function [x,y,t,u,px,py,p] = jcalcf(X,Y,P)% JCALCF [x,y,t,u,px,py,p] = jcalcf(X,Y,P) Function version of jcalc% Version of 5/3/95 % Allows arbitrary naming of variablesif sum(size(P) ~= [length(Y) length(X)])>0 error(' Incompatible vector sizes')end x = X;y = Y; p = P;px = sum(P); py = fliplr(sum(P'));[t,u] = meshgrid(X,fliplr(Y));
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jointzw.m Sets up joint distribution for Z = g ( X , Y ) and W = h ( X , Y ) and provides calculating matrices as in jcalc. Inputs are P , X , and Y as well as array expressions for g ( t , u ) and h ( t , u ) . Outputs are matrices Z , W , P Z W for the joint distribution, marginal probabilities P Z , P W , and the calculating matrices v , w .

% JOINTZW file jointzw.m Joint dbn for two functions of (X,Y) % Version of 4/29/97% Obtains joint distribution for % Z = g(X,Y) and W = h(X,Y)% Inputs P, X, and Y as well as array % expressions for g(t,u) and h(t,u)P = input('Enter joint prob for (X,Y) '); X = input('Enter values for X ');Y = input('Enter values for Y '); [t,u]= meshgrid(X,fliplr(Y)); G = input('Enter expression for g(t,u) ');H = input('Enter expression for h(t,u) '); [Z,PZ]= csort(G,P); [W,PW]= csort(H,P); r = length(W);c = length(Z); PZW = zeros(r,c);for i = 1:r for j = 1:ca = find((G==Z(j))&(H==W(i))); if ~isempty(a)PZW(i,j) = total(P(a)); endend endPZW = flipud(PZW); [v,w]= meshgrid(Z,fliplr(W)); if (G==t)&(H==u) disp(' ')disp(' Note: Z = X and W = Y') disp(' ')elseif G==t disp(' ')disp(' Note: Z = X') disp(' ')elseif H==u disp(' ')disp(' Note: W = Y') disp(' ')end disp('Use array operations on Z, W, PZ, PW, v, w, PZW')
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jdtest.m Tests a joint probability matrix P for negative entries and unit total probability..

function y = jdtest(P) % JDTEST y = jdtest(P) Tests P for unit total and negative elements% Version of 10/8/93 M = min(min(P));S = sum(sum(P));if M<0 y = 'Negative entries';elseif abs(1 - S)>1e-7 y = 'Probabilities do not sum to one';else y = 'P is a valid distribution';end
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Setup for general random variables

tappr.m Uses the density function to set up a discrete approximation to the distribution for absolutely continuous random variable X .

% TAPPR file tappr.m Discrete approximation to ac random variable % Version of 4/16/94% Sets up discrete approximation to distribution for % absolutely continuous random variable X% Density is entered as a function of t r = input('Enter matrix [a b]of x-range endpoints '); n = input('Enter number of x approximation points ');d = (r(2) - r(1))/n; t = (r(1):d:r(2)-d) +d/2;PX = input('Enter density as a function of t '); PX = PX*d;PX = PX/sum(PX); X = t;disp('Use row matrices X and PX as in the simple case')
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tuappr.m Uses the joint density to set up discrete approximations to X , Y , t , u , and density.

% TUAPPR file tuappr.m Discrete approximation to joint ac pair % Version of 2/20/96% Joint density entered as a function of t, u % Sets up discrete approximations to X, Y, t, u, and densityrx = input('Enter matrix [a b] of X-range endpoints ');ry = input('Enter matrix [c d] of Y-range endpoints ');nx = input('Enter number of X approximation points '); ny = input('Enter number of Y approximation points ');dx = (rx(2) - rx(1))/nx; dy = (ry(2) - ry(1))/ny;X = (rx(1):dx:rx(2)-dx) + dx/2; Y = (ry(1):dy:ry(2)-dy) + dy/2;[t,u] = meshgrid(X,fliplr(Y));P = input('Enter expression for joint density '); P = dx*dy*P;P = P/sum(sum(P)); PX = sum(P);PY = fliplr(sum(P')); disp('Use array operations on X, Y, PX, PY, t, u, and P')
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Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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A fair die is tossed 180 times. Find the probability P that the face 6 will appear between 29 and 32 times inclusive
Samson Reply

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Source:  OpenStax, Applied probability. OpenStax CNX. Aug 31, 2009 Download for free at http://cnx.org/content/col10708/1.6
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