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Solve and plot differential equations
I want to solve these two differential equations. I have the initial conditions:x(0)=0y(0)=0x'(0)=5.7t'(0)=8.1What am I doing wrong?
View ArticleConstants in dsolve
When solving ODE with dsolve, I don't want to use "_C1" as the name of constant, I want to specify by myself, how can I do?
View Articlehelp me please!!!!!!!!!!!! I want write loop
I want write loop for this code:V := 24;eq := {Eq2, Eq3};ans := fsolve(eq, {a1 = 0, a3 = 0});r := 0;W1 := rhs(ans[1])*phi11(r)+rhs(ans[2])*phi21(r)V and W1 is Variable, I change V and solve eq and...
View ArticleSolving Critical Points on Maple?
Hi,Ive been trying to solve critical points for maple but i keep getting this werid...
View ArticleBisection method, roots, polynom
Dear all,I need you help to finish some steps of this idea to approximate the roots of a given equation (polynom). Thanks in advance for your help. I have a sturm sequence, I would like to use...
View ArticleAnalytic solution of dsolve
Dear ColleguesI have a system of odes as followsrestart:#gama1:=0.2:#rhop:=5180:#rhobf:=998.2:#a[mu1]:=39.11:#b[mu1]:=533.9:#a[k1]:=7.47:#b[k1]:=0:Teq :=...
View ArticleError in the solve command
hi.please see attached file below and help meError, (in solve) cannot solve expressions with diff(diff(diff(f4(x), x), x), x) for diff(diff(f4(x), x), x)thanks..error.mw
View ArticleError, (in Engine:-Dispatch) invalid subscript selector
Hi everyone,I'm trying to solve the following equation and unfortunately I get this error ( Error, (in Engine:-Dispatch) invalid subscript selector ) each time I try. Could you please help me??I will...
View ArticleSolving an equation
Hi everyone, I'm trying to solve the following eqauation but Maple gives me the answer (( RootOf(mexp(-_Z*(m-1))*d^2-theta+_Z*theta-theta*c*t__kj) )) The equation...
View ArticleSolve an equation in Maple
Hi everyone, I'm trying to solve the following eqauation but Maple gives me the answer...
View ArticleConstants in dsolve
When solving ODE with dsolve, I don't want to use "_C1" as the name of constant, I want to specify by myself, how can I do?
View ArticleHow to solve system in that way?
Is there a command in Maple that directly divides one equation by another and produce the result as one equation directly? I wanted to verify the text book, where it says x^2-y^2 = a*z^2 -----...
View ArticleSolving nonlinear equations
HiPlease help me to solve EQ in attached file.I need amount of P.Solution.mw
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Error when executing procedure
Hello,I'm writing a code and I seem to have an issue when trying to implement a procedure. Here is the code: > > > > > > > > (1)> > > > > > > > Error,...
View ArticleHow can i solve this equation?
hi allhow can i solve this program?restart;I5:=evalf(int((x^2)/((x^4-2*x0*x^2+x0^2+1)^(3/2)),x=0..infinity)): I6:=evalf((1/2)*int(1/(x^4-2*x0*x^2+x0^2+1)^(1/2),x=0..infinity)):...
View ArticleAccessing 2-variable answers from a list of varying size
I am using solve() to give me a two variable solutions (e.g. a = 3, b = 5). Very often, I have 2 solutions, so the output will be something like {a = .8025072621, b = -.8025072621}, {a = 1.326426441, b...
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Why won't Maple solve this?
Hi I'm trying to solve this in maple: solve({0.001=x*exp(0.6/(n*0.026)), 0.01=x*exp(0.68/(n*0.026))},{x,n}) Wolfrom alpha can do it:...
View ArticleHow to find all the roots?
can anyone please help me to find roots of (2*cos(0.5*x)*sin(0.5*x)*cos(3.775*x)+2.2075*((cos(0.5*x))^2)*sin(3.775*x)-0.453*((sin(0.5*x))^2)*sin(3.775*x)=0 ?i type on maple like...
View ArticleAbout 'coeffs' and 'solve'
Assume that I have r:= -6x+3y+23x2-4xyz+7z2 . By using coeffs(r,x,'k') I can find the coefficients of 1, x, and x2. What should I write to get the conditions that make the coefficient of x zero? How...
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Four equations in four unknowns
> (1)> (2)> diff((2), y);(3)> diff((3), y);(4)> (5)> diff((5), x);(6)> diff((6), x);(7)> (8)> diff((8), x);(9)> diff((9), y);(10)(11)>...
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