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How to solve differential equations with initial c...

Asked by: Prakash J 100
ode homework dsolve
April 26 2023
2  8

eq1 := diff(f(x), x, x, x)+(1/2)*cos(alpha)*x*(diff(f(x), x, x))+(1/2)*sin(alpha)*f(x)*(diff(f(x), x, x)) = 0;

eq2 := diff(g(x), x, x)+diff(g(x), x)+(diff(g(x), x))*(diff(h(x), x))+cos(alpha)*x*(diff(g(x), x))+sin(alpha)*f(x)*g(x) = 0;

eq3 := diff(g(x), x, x)+diff(h(x), x, x)+1/2*(cos(alpha)*x+sin(alpha)*f(x)) = 0

ics := f(0) = 0, (D(f))(0) = 1, ((D@@2)(f))(0) = a[1], g(0) = 1, (D(g))(0) = a[2], h(0) = 1, (D(h))(0) = a[3];

how to solve two integral together?...

Asked by: Pi 30
integration syntax 2dmath
April 19 2023
0  2

if i solved two integral seperately..it solved.. but i can't solve together..what's wrong...please help

> 

restart
> 

"al_eq:=`D__11`*(∫)[0]^(a)((ⅆ)^2)/((ⅆ)^( )x^2) A*((ⅆ)^2)/((ⅆ)^( )x^2) A ⅆx (∫)[0]^(b)B*B ⅆy;"

Error, invalid product/quotient

"al_eq:=`D__11`*(∫)[0]^a((ⅆ)^2)/((ⅆx)^2) A*((ⅆ)^2)/((ⅆx)^2) A ⅆx (∫)[0]^bB*B ⅆy;"

  
> 

``

B^2*b

 (1)
> 

``

Download 2.mw

how to do if statement or loop in maple?...

Asked by: Pi 30
duplicate-question incomplete-question
April 18 2023
0  5

i want to sovle this problem ..but i dont' know how to start..please help me.how to solve this eqution?

how to solve cos * cosh = 1 ?...

Asked by: Pi 30
solve
April 18 2023
0  4

how to solve for lamda and r in this equtaions...please help

> 

restart
> 

with(LinearAlgebra):
> 

solve(cos(lambda[i])*cosh(lambda[i]) = 1);

Warning, solutions may have been lost

  

0

 (1)
> 

evalf(%);

0.

 (2)
> 

lambda[i];

lambda[i]

 (3)
> 

r[i] := (cos(lambda[i])-cosh(lambda[i]))/(sin(lambda[i])-sinh(lambda[i]));

(cos(lambda[i])-cosh(lambda[i]))/(sin(lambda[i])-sinh(lambda[i]))

 (4)
> 

``

Download 1.mw

how to find the answer of this problem in maple?...

Asked by: Pi 30
matrix seq duplicate-question
April 16 2023
1  3

guys..i need help ...how to find the answer for this equation..for all value of in and b in (a and b)...for all combination of a and b

problem.mw

why this equations isn't solving?...

Asked by: Pi 30
integration differentiation incomplete-question
April 13 2023
0  10

what is wrong..in the past ..this equations was solved..now it doesnt' solved anymore...integral equations

total_PE.mw

how to put command prompt between two command line...

Asked by: Pi 30
April 13 2023
0  3

hello sir..i'm new..and i want to know how to put command prompt ..between two command line .i read but i didn't find..

how to solve this problem?...

Asked by: Pi 30
duplicate-question incomplete-question
April 12 2023
1  3

hey guys...please watch my file and help me. when i call(Am)...it only shows last value. how can i get all (Am) value in like seq or table

> 

restart
> 

with(LinearAlgebra):
> 

i := [seq(2*i-1, i = 1 .. 10)];

[1, 3, 5, 7, 9, 11, 13, 15, 17, 19]

 (1)
> 

for i in i do A[m] := (x/a)^(i+1)*(1-x/a)^2 end do;

x^2*(1-x/a)^2/a^2

  

x^4*(1-x/a)^2/a^4

  

x^6*(1-x/a)^2/a^6

  

x^8*(1-x/a)^2/a^8

  

x^10*(1-x/a)^2/a^10

  

x^12*(1-x/a)^2/a^12

  

x^14*(1-x/a)^2/a^14

  

x^16*(1-x/a)^2/a^16

  

x^18*(1-x/a)^2/a^18

  

x^20*(1-x/a)^2/a^20

 (2)
> 

``

Download 3.mw

when i call(Am)...it only shows last value. how can i get all (Am) value in like seq or table

how to solve this equation in maple?...

Asked by: Pi 30
syntax int
April 12 2023
0  1

i want to solve..this what is happening..i used maple not a long time ago.help me

> 

restart; with(LinearAlgebra)
> 

i := 1;

1

 (1)
> 

w := c[i]*(x/a)^(i+1)*(1-x/a)^2*(y/b)^(i+1)*(1-y/b)^2;

c[1]*x^2*(1-x/a)^2*y^2*(1-y/b)^2/(a^2*b^2)

 (2)
> 

(1/2)*(int(int([D__11*(diff(w, x, x))^2+2*D__12*(diff(w, x, x))*(diff(w, y, y))+4*D[66]*(diff(w, x, y))^2+D[22]*(diff(w, y, y))^2-2*q*w], x = 0 .. b), y = 0 .. a))

Error, (in int) wrong number (or type) of arguments: for an operator integrand a range without a variable of integration is expected, got x = 0 .. b

  
> 

``

Download 2.mw

Error, index must evaluate to a name when indexing...

Asked by: Saha 75
syntax homework differential-equations
April 07 2023
0  4

ADM-1.mw

I need a help for solving this non linear equation by Adomian Decomposition Method.How to find A0,A1,A2... and u1,u2,u3 and a series.I am getting this error,Please help me.
> 

restart
> 

PDEtools[declare](prime = x);

`derivatives with respect to`*x*`of functions of one variable will now be displayed with '`

 (1)
> 

equ1 := u[tt] = 1/2*(u[xx]+u[yy])+u^2:
> 

ICS; u(x, y, 0) = 1, u[t](x, y, 0) = e^(x+y), lambda = 0, u[0] = 1+t*e^(x+y), F(u[0]) = u[0]^2
> 

for n from 0 to 5 do A[n] := d^n*[F*(sum(lambda^i*u[i], i = 0 .. n))]/(factorial(n)*`dλ`^n); u[n+1] = (1/2)*int[diff(sum(u[n], n = 0 .. 5), x, x)+diff(sum(u[n], n = 0 .. 5), y, y), t = 0 .. t, t = 0 .. t, dt*dt]+int[A[n], t = 0 .. t, t = 0 .. t, dt*dt] end do
> 

``

Download ADM-1.mw

plotting ellipse...

Asked by: Pi 30
implicitplot plotting ellipse
April 06 2023
2  8

i try to plot this equation        2.96736996560705*10^(-12)*p^2+1.31319840299485*10^(-13)*t^2-8.89549693662593*10^(-7)*p+8.53128393394231*10^(-7)*t-3.65558815509970*10^(-30)*p*t-1 = 0 and use this command plots:-implicitplot(TWeq, p = -10^10 .. 10^11, t = -3*10^8 .. 3*10^8, gridrefine = 3, scaling = constrained, size = [1000, 100]) but  it only shows like this

it should be an ellipse but it just show like this..please help me.

How do I solve this ODE?...

Asked by: Saha 75
ode differential-equations
March 26 2023
0  0

I need help to solve this ODE,

I didn't get series values F(k+3),Theta(k+2),phi(k+2),error comes in summation values.and

How to find the unknown parameters A,B,C.

 TLF.mw

How can i re-install maple 18....

Asked by: Oscar Jaramillo 0
March 17 2023
0  2
Dear Friends
On 22 March 2018, I received: 
 
ORDER REFERENCE INFORMATION
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Customer: Universidad Nacional Autonoma De Mexico, UNAM
Order Date: 3/21/2018
Order Number: 889668
Customer Purchase Order: 10972 
For instaling MAPLE 18
 
Please see the at bottom of the mail
 
I am trying to reinstall MAPLE 18. Unfortunately the download link
It's no longer available. Please send me a link to download Version MAPLE 18. Thank you very much for your time and consideration.
Best Regards
Oscar Jaramillo-Salgado
 

El 22 mar 2018, a las 11:05, license@maplesoft.com escribió:

Dear Oscar Jaramillo Salgado,

Here is your copy of Maple 2018. And this is not a release to ignore!

People use Maple to do many different things, so it’s inevitable that each new release will include some features you care about and some features you really don’t need. However, Maple 2018 contains a large number of substantial enhancements to how you interact with Maple, which means you’ll benefit from this release no matter what you use Maple for.

You are receiving this email because you are a member of the Maplesoft Elite Maintenance Program (EMP). While you participate in this program, you are entitled to new product releases as they come out.

If you are a MapleSim user, note that, unlike in previous years, this email contains only your Maple entitlement information. If you are still an active EMP member when MapleSim is released, we will send your MapleSim information to you at that time.

How to retrieve your Entitlement 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The purchase code(s) required to activate your product(s) are included below in addition to download link(s) to access the installation files.

If you would like a physical copy of your product(s) shipped to you, please go to http://www.maplesoft.com/entitlements. You will need the email address that this email was sent to along with the order number. 

ORDER REFERENCE INFORMATION
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Customer: Universidad Nacional Autonoma De Mexico, UNAM
Order Date: 3/21/2018
Order Number: 889668
Customer Purchase Order: 10972

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


================================================================
Downloads:

Maple 2018: http://www.maplesoft.com/downloads/?d=3818426C1C82FED050562AB71F77C087&pr=Maple2018

================================================================
Product: Maple2018 Single User Entitlement Download for 1 user(s) (includes 1 home use license(s))

The following Purchase Codes activate this product:

[Purchase code deleted]

For the Maplesoft terms and conditions that govern your license to the above noted products, please refer to the Maplesoft End User License Agreement (EULA) found during installation. The Maplesoft EULA can also be found online at http://www.maplesoft.com/documentation_center/Maplesoft_EULA.pdf . You should review the entire Maplesoft EULA prior to activating your products. 

SUPPORT
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

It is important that you follow the installation instructions contained with each product. If you experience any problems during installation, please visit the Maplesoft online technical support center at http://www.maplesoft.com/support.

For more information on activation, refer to the FAQ page at: http://www.maplesoft.com/support/FAQs/Activation.

For further assistance, please contact the Maplesoft Customer Support Department via the online form located at http://www.maplesoft.com/support/supportforms.aspx. For customers outside the USA and Canada, please contact the local office or Maplesoft reseller for your region. Visit http://www.maplesoft.com/contact for contact information.

Please refer to your order number (889668) in any correspondence to customer service.

Kind Regards,
Maplesoft Customer Service
http://www.maplesoft.com

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How to Solve Error, (in dsolve/numeric/bvp/convert...

Asked by: Saha 75
February 11 2023
0  1

Please Help,

I am trying to plot some movement equations, but the following error keeps happening:

Error, (in dsolve/numeric/process_input) system must be entered as a set/list of expressions/equations

when I tryed to rewrite the equation the error became:

Can someone help me with those errors?

Here is the code

pp.mw

How to Plot this ?...

Asked by: Saha 75
ode homework dsolve
January 31 2023
0  1

Please Help!  The flow gets me like this,Where should i fix this problem.The flow changes for me fluctuate through the series range.What to do to get upflow in f(eta) and downflow in theta(eta)

 MVP.mw

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