## Solving system of differentail equation...

Asked by:

I am trying to solve system of differential equation as shown in file attached. The differentail eqaution has peicewise function for t=8*n and t not equal to 8*n where n is a positive integer. but i am getting error. please help.

problem30.mw

## Can not open context menu...

Asked by:

Hello everyone! I have just started to using Maple 13. I want to solve complex eauation systems.

When I am working on Maple, If I write simple mathematical calculation and then press right click, the context menu open. However, I want to use solve command. Therefore I wrote an eauation after than press right click the context menu will not open.

What is the reason of this problem?

## Integral not evaluated...

Asked by:

Integral is not evaluated.

PROBLE_13.mw

## "how can I get the order of convergence of an iter...

Asked by:
`please I need the code to calculate the convergence order of a multipoint iterative method to solve nonlinear equation systems.`

`my email is: yjmsigma@gmail.com`

## convergence issue while expansion of hypergeometri...

Asked by:

In the first one I used hypergeometric function where the number is converged. Now using the series expansion of hypergeometric function I rewrite the equation as in the 2nd and 3rd case. But here it is not converging. I expect the same answer as in the first case i.e 0.14042. Thank you

problem2.mw

## sum not converging...

Asked by:

In the following problem at two example are given. For Z=2 the sum is converging whereas at Z=4 it is not converging. Thank you

PROBLEM.mw

## how to get the output of the plots in rows and col...

Asked by:

any one can help me to get the output of the plot in 3 rows and 2 columns here is my codes. thanks in advance.

restart;
h:=z->1-(delta2/2)*(1 + cos(2*(Pi/L1)*(z - d1 - L1))):
K1:=((4/h(z)^4)-(sin(alpha)/Gamma2)-h(z)^2+Nb*h(z)^4):
lambda:=unapply(Int(K1,z=0..1), Gamma2):
L1:=0.2:
d1:=0.2:
alpha:=Pi/6:
with(plots):
display
( Vector[row]
( [ seq
( plot
( [ seq
( eval(lambda(Gamma2), Nb=j),
j in [0.1,0.2,0.3]
)
],
delta2=0.02..0.1,
legend=[Nb=0.1,Nb=0.2,Nb=0.3],
labels=[typeset(`&delta;1`), typeset(conjugate(`&Delta;p`))],
title=typeset("Effect of ", ''alpha'', " when ", Gamma,"2=", Gamma2)
),
Gamma2 in [10,20,30,40,50,-10]
)
]
)
);

## how to remove error in plot display...

Asked by:

Hellow ,

any body can help me to remove the error from the plot, here is my codes .

Note. 1. *Title {Effect of alpha when 'Gamma2'=Gamma2}

2. *on the y axis i want  bar(deltap)

restart;

h:=z->1-(delta2/2)*(1 + cos(2*(Pi/L1)*(z - d1 - L1))):
K1:=((4/h(z)^4)-(sin(alpha)/Gamma2)-h(z)^2+Nb*h(z)^4):
lambda:=unapply(Int(K1,z=0..1), Gamma2):
L1:=0.2:
d1:=0.2:
alpha:=Pi/6:
plots:-display(Vector[row]([seq(plot([seq(eval(lambda(Gamma2), Nb=j), j=[0.1,0.2,0.3])], delta2=0.02..0.1, legend=[Nb=0.1,Nb=0.2,Nb=0.3],labels = ["d1 ", "Dp"],labelfont = ["SYMBOL", 12], title=(Effect of alpha when 'Gamma2'=Gamma2)), Gamma2=[10,20,30])]),axes=boxed);

## height and width of plot in maple 13...

Asked by:

how to adjust the height and width of plot in maple 13

plot( x[3]^5, caption = typeset("\n A plot of %1.", x[3]^5), captionfont=[times, 20] );

## caption size and font in plot...

Asked by:

hellow,

can any body help me to  increase the size of the caption in maple plot

plot( x[3]^5, caption = typeset("A plot of %1.", x[3]^5) );

## dslove trigger time with rhs(SOL[1](last)...

Asked by:

I want to fetch the trigger time.
I use rhs function.

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Download RHS_TEST.mw

## dsolve numeric error ...

Asked by:

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Download Rindler_simulation_v2.mw

## extracting coefficients of exponential functions...

Asked by:

Consider for instance the following equation:

Eq:=(a-4)*exp(4*x)+(b+1)*exp(2*x)+(c-2)=0

How can I list the coefficients of the exponential functions and also solve the equation for the constant parameters

a, b, and c?

I tried

[coeffs(collect(lhs(EQ), exp), exp)] =~ 0;

but it did not work. Thank you for your help.

## fetch the dsolve event time ...

Asked by:

1) How can i get the event time. This example 0.69313.

2) I don't want to see the Warning.How can i do it?

`Warning, cannot evaluate the solution further right of .69314729, event #1 triggered a halt`

## dsolve with event...

Asked by:

Why this event dose'nt work ?
S(t) is a state , a parameter
dsolve(...,numeric,events = [[[s(t), a*arcsinh(2/a) < s(t)], halt]]);

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