## 35 Reputation

1 years, 255 days

## Eval time of vertical drop of a function...

Maple

min_problem.mw

Hi everyone

I am trying to solve the following problem. I want to evaluate the time when the function Sx(t) drops (the last vertical drop at about 0.45 sec)

The minimize command doesnt work because the function slightly deacreases afterwards but I am interested in the drop. For a miniization (evaluate the relevant time). I do it as follows:

Does anyone have an idea how to evaluete the time of drop? Is there an other command than minimize to solve this?

## simple Iteration ...

Maple

Hi Everyone

I want to to an iteration of an expression with 100 steps. To be honest I have no idea how to handle this in maple. I also didnt find much infomation on maplesoft.com

The expression i want to iterate looks like this:

Has someone an idea how to do this?

## animate rotating object in interval...

Maple 2021

Hi everyone

I have a question regarding an animation. The maple file is attached at the bottom. (parts of it are from tomleslie 12910

I have two spheres which move and rotate over time. Now I would like to show one ball at a certain time and the other one at a certain time and not both over the whole animation.

For example:

x1 should only be shown and visible from time -1 to 0

x2  should only be shown and visible from time 0 to 1

Because I want to show a kind of transition from x1 to x2 at the time 0 i cannot just start one animation at -1 and the other at 0 because then they would run at the sime time which is not the goal.

has anyone an idea?

how_transition.mw

## odeplot with automatically adjusting tim...

Maple

Hi everyone, I have a question regarding the time in a plot.

The idea behind is, that i dont have to adjust the time after every change of parameters.

I have a function that only is valid until a certain time. I evaluete the time until cut off for example like this:

tempLrest := Optimization:-Minimize(tempLrest(t), t = 0 .. 2);
tempLrest := [2.47883089786094 10^-8  , [t = 0.414486068771508]]

cutoff := tempLrest[2];

Now i want to call "cutoff" in an odeplot like this:

odeplot(sol1, [t, z(t)], 0 ..cutoff , size = [300, 300])

unfortunately this doesnt work.

Does everyone know how to solve this problem?

## animate flight path of ball including ro...

Maple 2021

Hi everyone

I have a problem regarding the animation of a flying ball.

I get the coordinates and rotation in rad/s out of differential equations. Now I want to show the movement of the ball including the rotation in an animation.

With just the coordinates it works just fine, but when I try do add the rotation the error message "number of elements in lust must be a multiple of 2" appears