sadeem alqarni
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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...
5 years 前 | 0 个回答 | 0
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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...
5 years 前 | 1 个回答 | 0
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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...
5 years 前 | 2 个回答 | 0
2
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i want the plot as this figure:
t1=0.024934942578746697937373773042546 t2=0.049480663428674892204211876103623 t3=0.073253551446249896676617134859737 t4=0.095...
5 years 前 | 1 个回答 | 0
1
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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...
5 years 前 | 1 个回答 | 0
1
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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...
5 years 前 | 0 个回答 | 0
0
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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...
6 years 前 | 0 个回答 | 0
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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+...
6 years 前 | 2 个回答 | 0
2
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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...
6 years 前 | 0 个回答 | 0
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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...
6 years 前 | 1 个回答 | 0
1
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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...
6 years 前 | 0 个回答 | 0
0
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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...
6 years 前 | 0 个回答 | 0
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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...
6 years 前 | 0 个回答 | 0
0
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how i convert r=1.859494566887529 to (18627-sqrt(50225239))/6206
r=1.859494566887529
6 years 前 | 1 个回答 | 0
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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,...
6 years 前 | 1 个回答 | 0
1
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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'...
6 years 前 | 3 个回答 | 0
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how i can found the region of absolute stability ?
<</matlabcentral/answers/uploaded_files/124420/region%20of%20absolute%20stability.png>>
how i can found the region of absolute stability ?
<</matlabcentral/answers/uploaded_files/124420/region%20of%20absolute%20stability.png>>
6 years 前 | 0
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how i can found the region of absolute stability ?
how i can found the region of absolute stability ?
how i can found the region of absolute stability ?
how i can found the region of absolute stability ?
6 years 前 | 0
提问
how to applay y'''+y'=0 , y(0)=y0=0, y'(0)=y01=1, y''(0)=y011=-2 in the following system where fn=y''' i got this error Error using mupadengine/feval (line 157) MuPAD error: Error: Cannot differentiate the equation. [numeric::fsolve] Error in sym
h=0.01 r=0.50091382026531899391478548897399 s=1.5931124176008341060884423751727 dy = diff(y ) d2y = diff(dy ) d...
6 years 前 | 1 个回答 | 0
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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...
6 years 前 | 0 个回答 | 0
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I showed results when I used vpasolve for this problem,but when I used it for another system of the same type I got this error Error using mupadengine/feval (line 157) MuPAD error: Error: Cannot differentiate the equation. [numeric::fsolve] Error
syms y22 y33 y5 y6 y7 y8 y9 t y(t) y1 v h=2*pi/(300) r=1-sqrt(3/7) s=1+sqrt(3/7) xn=0 y0=1.0 fn(t)=-y(t)+0.001*exp(sqr...
6 years 前 | 0 个回答 | 0
0
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how i can solve Error using sym/subsindex (line 1558) Indexing input must be numeric, logical or ':'. Error in sym>privformat (line 2357) x = subsindex(x)+1; Error in sym/subsref (line 1578) [inds{k},refs{k}] = privformat(inds{k});
syms y x fn fn=cos(x) b=y+2*y^2 y=fn(b)
6 years 前 | 1 个回答 | 0
1
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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...
6 years 前 | 0 个回答 | 0
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i want solve y'''=3sin(xn),y(0)=1,y'(0)=0,y''(0)=-2 ,the analyic solution 3cos(xn)+((xn)^2/2)-2 by hybrid block method i have the system of the block method in which i will apply this differential equation my broblem the numerical solution not true
clear all clc syms x h r s yn(xni) yn(xn) fn(xn) v(xn) w(xn) p(xn) xx(xn) a(xn) yn2 q1=xn+2*h; q2=xn+h; ...
6 years 前 | 1 个回答 | 0
1
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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...
6 years 前 | 0 个回答 | 0
0
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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...
6 years 前 | 0 个回答 | 0
0
个回答已回答
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; ...
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; ...
6 years 前 | 0
提问
how i convert (0.345346329292023) to 1-sqrt(3/7)
how i convert (0.345346329292023) to 1-sqrt(3/7)
6 years 前 | 2 个回答 | 0