get rid of absolute value when solve system of equations
when solving a system of equations, I want to get rid of all the absolute functions. for example, |y-2|=x，I don't want maple solve this equation directly...because maple may has difficulties when...
View ArticleError, (in dsolve/numeric/process_input) system must be entered as a set/list...
I can't solve this problem, can someone explain me whats worng and how to fix it, here is what i've done:with(plots);with(DEtools);sist := diff(x1(t), t) = -4*x1(t)+x2(t), diff(x2(t), t) =...
View ArticleHow do i solve a linear equation and assign the values in a for loop?
I have a set of equations icsi and a set of variables vi . How do i assign each solution to the variable before solving the next equation?I tried- for i from 1 to 3 do solvedi := solve(icsi,...
View ArticleError, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit...
Hi .please help me for solve this nonlinear equations , that attch belowthanks a lots..... dsys3 := {8*(diff(f2(x), x, x, x, x))+9*(diff(f2(x), x, x))+10*f2(x)+11*(diff(f1(x), x, x,...
View Articlethe system of differential equations and the selection of initial conditions.
Hello, dear experts.I have a question...I solve the system of differential equations,where one of the initial conditions need to be chosen so thatcondition is metat the end of integration.The task is...
View ArticleWarning, solutions may have been lost
hi everyone,I wanna to solve this equation using maple 12 but I receive this warning messagecos(x)*cosh(x)=1cos(x)*cosh(x)=-1tan(x)=tanh(x)thanks in advance
View Articlesolving a equation
hi guys , i have two set equations and i want to solve them. eq.mw thanks guys
View ArticleHow to solve this equation?
How can I solve this equation 18 *9^(x^2 + 2* x) + 768* 4^((x + 3)* (x - 1)) - 5 *6 ^((x + 1)^2)?I triedrestart:A:=18 *9^(x^2 + 2* x) + 768* 4^((x + 3)* (x - 1)) - 5 *6 ^((x + 1)^2);solve(A=0);I see...
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Differential Transforms Method
hello everyone. I have an undergradute project i'm currently working on and I'm stuck where I have to use the Differential Transforms Method to solve a problem with boundary conditions at...
View ArticleSolving system of equations
Hi, I have 10 equation system and 10 unknown variables. I however, want to reduce the equations to 2 with two unknowns. I'm wondering how this could be done in maple. The variables are Y, q, yd, y*,...
View ArticleHow can I find all the roots ?
If there is an equation or are several equations, I need to obtain all the roots, how can I do??? fsolve ? rootfindings? or what? If an examples of actual is given, That will be perfect !!! Thanks
View ArticleAn integral equation to solve
I have the following integral equation to solve numerically: v(x,t)=1 - h*\int_0^t JacobiTheta0(1/2x , \pi i s) v^4(1,t-s)dswhere h is a numerical parameter, and v(1,t) = 1-h*\int_0^t...
View Articleproblem with solve integral
hi.please help me for solve this integralthanks aloterror.mw(Phi)(x,theta,z,t):=-Phi[0].sin((m*Pi*(x-x[0]))/(L)).cos(n*theta)*cos((Pi.z)/(h)).sin(omega*t):n:=1:L:=2:m:=3:x[0]:=6:h:=1/(2);print(`output...
View ArticleIVP Dsolve Error
Hello, I am a student doing some self study over the summer trying to work through some of the John Taylor computer problems from his classcial mechanics book. Currently I hit a snag that most...
View Articlewhy the the software can't solve the integral like ∫xdlnx？
why the the software can't solve the integral like ∫xdlnx？Thanks in advance for your help.
View Articlehow to speed up this part of code
There is million items in list, what is the difference between seq and for loop ?is seq faster than for loop?it is very slow when running code below, how to speed up this part of code?...
View ArticleHow to solve a set of ode in for loop
Hi,I am trying to solve a set of ode which depends on some parameters like A0,0, A1,0, A1,1, B0,0, B1,0, B1,1, C0,0 and so on. Here is some part of my code: restart;sigma := 1; X := proc (m) if m...
View ArticleSolving with Enumeration
I need to solve a set of equations but changing a constant each time.For example, x+by=0, bx-y=10 where b=10,20.I don't want to put it in a loop because, in loop, the equations are solved repeatedly. I...
View Articlesolve pre-defined parameters?
I want to compute the following solve:C:=A, B, F, H(It has 4 unknowns):V:=R,Y,E,I (It has 4 equations):solve({V},{C});By hand calculations I just found that the solve result is real ,but in maple there...
View ArticleHow can I reduce all solutions ?
I want to reduce all solution of the equation sin(x)^2=1/4restart:sol:=solve(sin(x)^2=1/4, x, AllSolutions);andrestart:k:=combine((sin(x))^2);sol:=solve(k=1/4, x, AllSolutions = true,...
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