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Error, (in dsolve/numeric/bvp/convertsys)...

Asked by: Saha 75
ode homework dsolve
May 03 2023
0  5

How to rectify this Error,in RK Method.Error, (in dsolve/numeric/bvp/convertsys) too few boundary conditions: expected 3, got 2.

I cound't plot p5,p6,p7.

If RK Method is suitable for this or not please tell the suitable numerical method code for this.Help me

IP-TEMP.mw

How can be written system of eqautions without the...

Asked by: achreftabet 60
substitution
April 28 2023
0  9

Hallo every body 

i have a question How can be written this system of eqautions without the variable "t"

thanks 

> 

restart
> 

``
> 

eq10 := epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))-Y(t)*alpha

epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))-Y(t)*alpha

 (1)
> 

eq11 := alpha*X(t)

alpha*X(t)

 (2)
> 

eq12 := epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))-beta*U(t)

epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))-beta*U(t)

 (3)
> 

eq13 := beta*Z(t)

beta*Z(t)

 (4)
> 

eq14 := epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))-W(t)

epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))-W(t)

 (5)
> 

eq15 := V(t)

V(t)

 (6)
> 

eq16 := epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))

epsilon*F(-(V(t)*alpha^4*beta^2-V(t)*alpha^2*beta^4-S(t)*alpha^4*beta^2+S(t)*alpha^2*beta^4+X(t)*beta^4-Z(t)*alpha^4+S(t)*alpha^4-S(t)*beta^4-X(t)*beta^2+Z(t)*alpha^2-S(t)*alpha^2+S(t)*beta^2)/(alpha^2*(alpha^2-1)*(alpha^2-beta^2)*beta^2*(beta^2-1)), (W(t)*alpha^3*beta-W(t)*alpha*beta^3+Y(t)*beta^3-U(t)*alpha^3-Y(t)*beta+U(t)*alpha)/((alpha^2*beta^2-alpha^2-beta^2+1)*beta*alpha*(alpha^2-beta^2)), (X(t)*beta^2-Z(t)*alpha^2+V(t)*alpha^2-V(t)*beta^2-X(t)+Z(t))/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), -(Y(t)*alpha*beta^2-U(t)*alpha^2*beta+W(t)*alpha^2-W(t)*beta^2-Y(t)*alpha+beta*U(t))/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), -(X(t)*alpha^2*beta^2-Z(t)*alpha^2*beta^2-X(t)*alpha^2+beta^2*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)), (Y(t)*alpha^3*beta^2-U(t)*alpha^2*beta^3-Y(t)*alpha^3+beta^3*U(t)+W(t)*alpha^2-W(t)*beta^2)/((alpha^2-beta^2)*(alpha^2*beta^2-alpha^2-beta^2+1)), (X(t)*alpha^4*beta^2-Z(t)*alpha^2*beta^4-X(t)*alpha^4+beta^4*Z(t)+V(t)*alpha^2-V(t)*beta^2)/((alpha^2-beta^2)*(beta^2-1)*(alpha^2-1)))

 (7)
> 

``

Download problem.mw

how can be solved this system in maple 18 ...

Asked by: achreftabet 60
solve rootfinding fsolve
April 28 2023
0  2

how can be solved this system in maple 18

restart

> 

fa[1] := -(1/4608)*V[0]^2+(1/4608)*W[0]^2+(1/2304)*U[0]*W[0]+(1/2304)*V[0]*Z[0]``

-(1/4608)*V[0]^2+(1/4608)*W[0]^2+(1/2304)*U[0]*W[0]+(1/2304)*V[0]*Z[0]

 (1)
> 

fa[2] := (1/153600)*(45*U[0]^2*V[0]-50*U[0]*V[0]*W[0]-50*U[0]*W[0]*Z[0]-5*V[0]*Z[0]^2-16*Z[0]*r[0]^2)/r[0]

(1/153600)*(45*U[0]^2*V[0]-50*U[0]*V[0]*W[0]-50*U[0]*W[0]*Z[0]-5*V[0]*Z[0]^2-16*Z[0]*r[0]^2)/r[0]

 (2)
> 

fa[3] := -(1/153600)*(5*U[0]^2*W[0]+50*U[0]*V[0]*Z[0]-16*U[0]*r[0]^2-50*V[0]*W[0]*Z[0]-45*W[0]*Z[0]^2)/r[0]

-(1/153600)*(5*U[0]^2*W[0]+50*U[0]*V[0]*Z[0]-16*U[0]*r[0]^2-50*V[0]*W[0]*Z[0]-45*W[0]*Z[0]^2)/r[0]

 (3)
> 

fa[4] := (1/115200)*(25*U[0]*V[0]*W[0]-25*V[0]*W[0]^2-160*V[0]*r[0]^2-25*W[0]^2*Z[0]-64*Z[0]*r[0]^2)/r[0]

(1/115200)*(25*U[0]*V[0]*W[0]-25*V[0]*W[0]^2-160*V[0]*r[0]^2-25*W[0]^2*Z[0]-64*Z[0]*r[0]^2)/r[0]

 (4)
> 

fa[5] := -(1/115200)*(25*U[0]*V[0]^2+64*U[0]*r[0]^2-25*V[0]^2*W[0]-25*V[0]*W[0]*Z[0]-160*W[0]*r[0]^2)/r[0]

-(1/115200)*(25*U[0]*V[0]^2+64*U[0]*r[0]^2-25*V[0]^2*W[0]-25*V[0]*W[0]*Z[0]-160*W[0]*r[0]^2)/r[0]

 (5)

``

> 

fa[6] := (11/57600)*U[0]^2+(1/768)*V[0]^2+(1/768)*W[0]^2+(11/57600)*Z[0]^2+(1/600)*r[0]^2

(11/57600)*U[0]^2+(1/768)*V[0]^2+(1/768)*W[0]^2+(11/57600)*Z[0]^2+(1/600)*r[0]^2

 (6)
> 

``

``

Download system.mw

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

  
> 

``

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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

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