已回答
what's the program mistake?
r=solve(b)

11 years 前 | 0

| 已接受

已回答
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...

11 years 前 | 0

已回答
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...

11 years 前 | 0

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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

11 years 前 | 0

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calculate the inv of a matric with one constant
syms t m = [3*t 0 0; 1 t 0;0 0 t]; inv(m)

11 years 前 | 0

| 已接受

已回答
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...

11 years 前 | 0

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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

11 years 前 | 0

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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

11 years 前 | 0

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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...

11 years 前 | 0

| 已接受

已回答
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...

11 years 前 | 0

| 已接受

已回答
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...

11 years 前 | 0

已回答
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...

11 years 前 | 0

提问


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...

11 years 前 | 1 个回答 | 0

1

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提问


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...

11 years 前 | 1 个回答 | 0

1

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提问


what should i do that matlab show me this polynomial equation as well-behaved function?
p=(1589159942548036497100838460028171539306640625*x^15)/52130638256800268132081172288531220051070714690086221222248448 - (4395...

11 years 前 | 1 个回答 | 0

1

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提问


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

11 years 前 | 1 个回答 | 0

1

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提问


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)=...

11 years 前 | 1 个回答 | 0

1

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已回答
Undefined function or variable ' t ',how can I difine ' t ' correctly?
put syms t before giving function F to the program

11 years 前 | 0

提问


How can i plot f(i),g(i),h(i) in one figure(i)?
I want to plot each three diagrams in one figure

11 years 前 | 1 个回答 | 0

1

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提问


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')

11 years 前 | 1 个回答 | 0

1

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提问


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')

11 years 前 | 3 个回答 | 0

3

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提问


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)

11 years 前 | 1 个回答 | 0

1

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