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Question

how to plot this in matlab?
nnnnnnn

3 years ago | 0 answers | 0

### 0

Question

how to solve this equations?
syms x l h eq1=1/h*(x*( 5.769184777556144297720428 * 10^335 - 7.717450818776814986578159* 10^334* h^3 *l^3 +1.88097535211393388...

3 years ago | 0 answers | 0

### 0

Question

I've attached a drawing using Mathematica and want the following graph to be exactly the same
syms y(x) vel = table([0;.125;0.25;0.375;0.5;0.625;0.75;0.875;1;1.125;1.25;1.375;1.5;1.625;1.75;1.875;2],[0; 0.0249349425787466...

3 years ago | 1 answer | 0

### 1

Question

how to plot? i got Error using tabular/plot (line 156) There is no plot method for the 'table' class. Plot the variables in a table using dot or brace subscripting.
vel = table([0;.125;0.25;0.375;0.5;0.625;0.75;0.875;1;1.125;1.25;1.375;1.5;1.625;1.75;1.875;2],[0; 0.024934942578746697937373773...

3 years ago | 1 answer | 0

### 1

Question

i want the plot as this figure:
t1=0.024934942578746697937373773042546 t2=0.049480663428674892204211876103623 t3=0.073253551446249896676617134859737 t4=0.095...

3 years ago | 1 answer | 0

### 1

Question

When I run the program inaccurate results appear What is the problem?
syms t y1 y2 y3 y4 yn11 yn1 yr yr11 yr111 yr v y(v) x format longe h=0.1 r=1.7686999343761197980595002942562 %1694/911=1...

3 years ago | 1 answer | 0

### 1

Question

h is the step size {h = 0.01}, but I want the results to appear at iteration 0.1
syms t y1 y2 y3 y4 yn11 yn1 yr yr11 yr111 yr v y(v) x format longe h=0.01; r=1.7686999343761197980595002942562; x=0; y...

3 years ago | 0 answers | 0

### 0

Question

When i use the (eliminate) command appere this error :Error using mupadengine/feval (line 187) Invalid indeterminate. Error in sym/eliminate (line 30) V = feval(symengine, 'groebner::eliminate', polylist, vars); Error in Untitled (line 11) elimina
syms y y1 yr y2 y3 y4 y11 y111 yr1 yr11 yn1 yn11 h lambda eqns=[y2 ==(4945869129944017*y)/36028797018963968 - (2866424224920907...

3 years ago | 0 answers | 0

### 0

Question

How to delete the following items([yr , y3 ,y4 ,y11, y111, yr1 ,yr11, yn1 ,yn11, fn, fnr, fn1, fn2])
syms y yr y1 y2 y3 y4 y11 y111 yr1 yr11 yn1 yn11 h fn fnr fn1 fn2 r=1.7585889236061132562137339518147 eq1=-y2-(r - 2)/r*y+...

3 years ago | 2 answers | 0

### 2

Question

how to Shading the intersection area?
x0 = -5; x1 = 5; Nx = 301; % Specify y range and number of points y0 = -5; y1 = 5; Ny = 301; % Con...

4 years ago | 0 answers | 0

### 0

Question

i have system of 15 equations and 15 unknown when i use (vpasolve) after 45 minit i have solutions with Warning: Solutions might be lost. [solvelib:​:allvalues​_warning]
syms y1 y2 y3 y4 yn1 yn11 yr yr11 yr111 ys ys1 ys11 yng yng1 yng11 format longe h=0.01 r=1.8594945668873855539277962650337...

4 years ago | 1 answer | 0

### 1

Question

i have system of 15 equations and 15 unknown when i use (vpasolve) after 45 minit i have solutions with Warning: Solutions might be lost. [solvelib::allvalues_warning]
syms y1 y2 y3 y4 yn1 yn11 yr yr11 yr111 ys ys1 ys11 yng yng1 yng11 format longe h=0.01 r=1.8594945668873855539277962650337...

4 years ago | 0 answers | 0

### 0

Question

how defind fn(t,y)=-y' ?? i have error
syms t y1 y2 y3 y4 yn11 yn1 yr yr11 yr111 ys ys1 ys11 yr v y(v) x yng yng1 yng11 y(t) format longe h=0.1 r=1.8594945668873...

4 years ago | 0 answers | 0

### 0

Question

how i can subs. true??
syms xn h r s y(xn) ya ya2 q1=xn+2*h; q2=xn+h; q3=xn+r*h; q4=xn+s*h; f1=y(q1); f2=y(q2); f3=dif...

4 years ago | 0 answers | 0

### 0

Question

how i convert r=1.859494566887529 to (18627-sqrt(50225239))/6206
r=1.859494566887529

4 years ago | 1 answer | 0

### 1

Question

How to shader the stability area ?
x0 = -5; x1 = 5; Nx = 301; y0 = -5; y1 = 5; Ny = 301; xv = linspace(x0,x1,Nx); yv = linspace(y0,y1,Ny); [x,...

4 years ago | 1 answer | 0

### 1

Question

how i can found the region of absolute stability ?
n=0:30:180 h=((768 *cos((1/2)*n) + 96* cos(n) - 864) ./ (40*cos (1/2*n)+ 2*cos(n)+ 102)) figure plot(n,h, 'b*-', 'LineWidth'...

4 years ago | 3 answers | 0

### 3

how i can found the region of absolute stability ?

4 years ago | 0

how i can found the region of absolute stability ?
how i can found the region of absolute stability ?

4 years ago | 0

### 1

Question

How can I solve this nonlinear system using fsolve
clear all clc syms t y2 y3 y4 yn1 yn11 yr11 yr111 ys ys1 ys11 y01 y011 y1 yr v h=0.01 r=0.500913820265318993914785...

4 years ago | 0 answers | 0

### 0

Question

how i can solve this system by fsolve with yn(0)=1;y'n(0)=0; yn''(0)=-2;yn'''(xn)=3*sin(xn)
D(yn)(xn)/5 + D(D(yn))(xn)/50 + yn(xn) + (586147810488533*15990^(1/2))/108311578912804377257312256000000000 + 27461879327689609...

4 years ago | 0 answers | 0

### 1

Question

how i can optained the unknown y ?
syms y(xn) for i=0:10 xn=i*0.1 h=0.1 y1 =- (1477460337761*h^11*diff(y(xn),11))/30037739963212800 - (1737005*h^8*diff(y...

4 years ago | 0 answers | 0

### 0

Question

how i can solve this system ?
syms xn h y(xn) for i=0:10 xn=i*0.1 h=0.1 zz1 =- (1477460337761*h^11*diff(y,11))/30037739963212800 - (17370...

4 years ago | 0 answers | 0

### 0

how i convert (0.345346329292023) to 1-sqrt(3/7)
syms y(x) aj xn h yn yn2 fn fn2 fn1 a0 a1 a2 a3 a4 a(j) t k x q1 r fnr yn1 s fn2 fns rr m=[1,xn,xn^2,xn^3,xn^4,xn^5,xn^6; ...

4 years ago | 0

Question

how i convert (0.345346329292023) to 1-sqrt(3/7)
how i convert (0.345346329292023) to 1-sqrt(3/7)

4 years ago | 2 answers | 0