Answered

How do I use the ode45, oder23, and ode15 to solve an ODE?

these are numerical method for solving differential equations. first you should write your function in one editor then use one o...

How do I use the ode45, oder23, and ode15 to solve an ODE?

these are numerical method for solving differential equations. first you should write your function in one editor then use one o...

8 years ago | 0

Answered

Help with this code

Tdata = [4 .6458 8 6.2; 5 .3324 13 6.7; 6 .2661 14 6.6; 7 .2216 16.5 5.6; 8 .2...

Help with this code

Tdata = [4 .6458 8 6.2; 5 .3324 13 6.7; 6 .2661 14 6.6; 7 .2216 16.5 5.6; 8 .2...

8 years ago | 0

Answered

how do i plot a graph in xy-plane?

h=6.25*10^(-34); x=-10:10; y=h*x; plot(x,y) grid on

how do i plot a graph in xy-plane?

h=6.25*10^(-34); x=-10:10; y=h*x; plot(x,y) grid on

8 years ago | 0

Answered

calculate the inv of a matric with one constant

syms t m = [3*t 0 0; 1 t 0;0 0 t]; inv(m)

calculate the inv of a matric with one constant

syms t m = [3*t 0 0; 1 t 0;0 0 t]; inv(m)

8 years ago | 0

| accepted

Answered

How to find index of first 3 maximum number in matrix

m = [7;1;4;4;12;2;6;10;2]; temp = sort( m, 'descend' ); n = temp(1:3); for i=1:9 if n(1)==m(i) p1=i...

How to find index of first 3 maximum number in matrix

m = [7;1;4;4;12;2;6;10;2]; temp = sort( m, 'descend' ); n = temp(1:3); for i=1:9 if n(1)==m(i) p1=i...

8 years ago | 0

Answered

I want to solve the below mentioned system of ODEs. However I get the warning "Explicit solution could not be found. > In dsolve at 194 " Can anyone explain me why?

you can't solve it unless you have k,g,m parameters

I want to solve the below mentioned system of ODEs. However I get the warning "Explicit solution could not be found. > In dsolve at 194 " Can anyone explain me why?

you can't solve it unless you have k,g,m parameters

8 years ago | 0

Answered

I want to display name of variable in msgbox instead of its value. for example;

d1=3;d2=5;d3=2; y=[d1 d2 d3]; x=min(y) good luck

I want to display name of variable in msgbox instead of its value. for example;

d1=3;d2=5;d3=2; y=[d1 d2 d3]; x=min(y) good luck

8 years ago | 0

Answered

Plot y^2 = x^2 + 1 (The expression to the left of the equals sign is not a valid target for an assignment.)

clear all clc; N = 10000; x = zeros(1,N); y1 = zeros(1,N); y2 = zeros(1,N); x = -5 + (5+5)*rand(1,N); for...

Plot y^2 = x^2 + 1 (The expression to the left of the equals sign is not a valid target for an assignment.)

clear all clc; N = 10000; x = zeros(1,N); y1 = zeros(1,N); y2 = zeros(1,N); x = -5 + (5+5)*rand(1,N); for...

8 years ago | 0

| accepted

Answered

for loop to sum up the integer

try this: n = randi([5,9]); totalsum = 0; runsum = 0; for i=1:n int = input('Enter an integer between 1 and...

for loop to sum up the integer

try this: n = randi([5,9]); totalsum = 0; runsum = 0; for i=1:n int = input('Enter an integer between 1 and...

8 years ago | 0

| accepted

Answered

How do I change the browsing directory, when clicking the 'Open' icon in the editor, to the current working directory?

before open matlab do this: first copy your desired directory then right click on matlab icon, go to "properties" and paste you...

How do I change the browsing directory, when clicking the 'Open' icon in the editor, to the current working directory?

before open matlab do this: first copy your desired directory then right click on matlab icon, go to "properties" and paste you...

8 years ago | 0

Answered

Please help with following code i am new with matlab and don't understand the error

clear all clc; Eg = input('Enter your value for Eg(T) = '); x = input('Enter your lower range for T = '); y = inpu...

Please help with following code i am new with matlab and don't understand the error

clear all clc; Eg = input('Enter your value for Eg(T) = '); x = input('Enter your lower range for T = '); y = inpu...

8 years ago | 0

Question

i want plot these three function but...

xb = linspace(0,1); ub =- 1.654e-9*xb^24 - 3.277e-9*xb^23 - 8.551e-9*xb^22 - 1.629e-8*xb^21 - 4.667e-8*xb^20 - 8.351e-8...

8 years ago | 1 answer | 0

Question

How can i involve four cpu on running a program in matlab 2014?

when i use parpool or matlabpool,program uses only extra ram not cpu whatever i do,my program only uses 25% of cpu what should...

8 years ago | 1 answer | 0

Question

what should i do that matlab show me this polynomial equation as well-behaved function?

p=(1589159942548036497100838460028171539306640625*x^15)/52130638256800268132081172288531220051070714690086221222248448 - (4395...

8 years ago | 1 answer | 0

Question

what is my mistake?

syms x A=[x 2 1;1 0 -x;5 1 x]; x=-15:.1:15; plot(x,det(A)) grid on

8 years ago | 1 answer | 0

Question

Why isn't the program run?

clear all clc; syms x f=sym(zeros(3,1)); g=sym(zeros(3,1)); h=sym(zeros(3,1)); f(1)=x; f(2)=x^3; f(3)=...

8 years ago | 1 answer | 0

Answered

Undefined function or variable ' t ',how can I difine ' t ' correctly?

put syms t before giving function F to the program

Undefined function or variable ' t ',how can I difine ' t ' correctly?

put syms t before giving function F to the program

8 years ago | 0

Question

How can i plot f(i),g(i),h(i) in one figure(i)?

I want to plot each three diagrams in one figure

8 years ago | 1 answer | 0

Question

how can i solve this polynomial equation?

clear all clc; syms x A=[x 2 1;1 0 -x;5 1 x]; det(A) r=solve('det(A)==0','x')

8 years ago | 1 answer | 0

Question

what's the program mistake?

clear all clc; syms x A=[x 2 1;1 0 -x;5 1 x]; b=det(A) r=solve('b=0','x')

8 years ago | 3 answers | 0

Question

what's the program mistake?

clear all clc; syms a b c w=zeros(3,1); w(1,1)=3*a+b; w(2,1)=b+2; w(3,1)=c-a; disp(w) b=3; disp(w)

8 years ago | 1 answer | 0