Items tagged with interval interval Tagged Items Feed

Hello, 

I am fairly new to using Maple and am a university student. Bascially, I wanted to ask, how can I solve for all roots of the transcendental equation 

=

In Maple 14, some functions involving coth do not plot correctly when using "plot".

Example:

> restart;
rS := 10000; cS := 1; 
ZWarbSolid := rS*coth((((1/4)*rS*cS*I)*exp(2*Pi*freq))^.5)/(((1/4)*rS*cS*I)*exp(2*Pi*freq))^.5;
> with(plots); 
p1 := plot([Re(ZWarbSolid), -Im(ZWarbSolid), freq = .4 .. 3.4], color = red, scaling = constrained, style = point);p2 := plot([freq, -Im(ZWarbSolid), freq = .4 .. 3.4], color = blue, style = point...

Hello. I need to solve a problem where:

  A is defined over a real inteval [c...d]   and   B is defined over another real interval [d....e]. 

I want maple  to take max(A,B) and tell me which interval is larger( asume no intersection)

For example

A=[0....1] and B=[2...3]

Answer should be max(A,B)=B

Thank you

Hey

I'm trying to solve this trigonometric equation:

e := 4·cos(t)+2·cos(2·t)=0. In the interval 0..2·Pi

However when i try: 

solve([e, 0 <= t <= 2 Pi], t, AllSolutions, explicit)

I won't give my a straight answer.

I have also given Student:-Calculus1:-Roots a try:

Student:-Calculus1:-Roots(e, t=0..2·Pi)

But it will only give me an answer when i use the numeric...

When i try to get all roots for an ODE, i try to use fsolve:

  fsolve((rhs(ODE_4))(t)=0,t=10..20);

where ODE_4 is an ODE (dsolve, numeric, output=listprocedure), where i want to find the root of the 4th variable in the ODE (4 should be an index).

Then i only get the fist root after t=10 and the computation stops. What can i do to get ALL roots in the given interval?

Hello, 

I am just starting to learn about maple.

I have a graph of two functions and would like to find the range that they agree within

 a certain percentage using fsolve() and format the interval as a list. 

The part that is throwing me off is the within a certain value part.  Thanks in advance!

Hello.i want animate the circle of radius 2 on the parabola y=x^2-30*x in the interval [-1,2].I wrote like that =animate(plot,[[-30*t+2cos(Phi),t^2+2sin(Phi)],Phi=0..2*Pi],t=-2..1) .But it doesn't work.What is wrong?

Is there a way to have interval arithmetics for complex inputs
(maple seems to name that range arithmetics in the help)?

x:=Pi/5;
shake(x);

              INTERVAL(0.628318529462 .. 0.628318531974)

shake(x*I);

    Error, (in evalr/shake) not a real number

Hello

Im trying to get maple to solve trigonomic equations in a specific interval but having trouble solving e.g. cos(t)=tan(t),t in [0;2 Pi].

I can solve for the general solutions with solve(cos(t)=tan(t),AllSolutions) and use isolve to specify the interval but this only works for some equations. Can piecewise be used in some way or have i missed a basic function in maple as with ti89 or ti inspire i can easily find the solutions?

How can I use 'evalr' and 'shake' for functions (in a relative or absolute sense)?

What I see in the help is the result for disturbing the input to a function (by decimal digits).

But I want ranges for the output, if the function itself is disturbed, not only the input
(giving resulting error ranges, even for exact input).

Any idea?