## 0 Reputation

11 years, 74 days
tec lyngby

## Create a tangent function...

Maple

Hi,

I want to create a tangent function.

I know that you can create tan(x) but how can you create the tangent function when the solutions are only:

x in [0.19740;0.91510[ union [3.3390;4.0567 ?

Another explanation:

How you can graphically show the valid values of x in this inequality?

`                  0.2 ≤ tan x < 1.3Best regards`
`fattali`

## Annulus and annulus crossing...

Maple

Hi, I have created 2 annulus;

`> display(sector([2, -5.5], 2.5 .. 3.5, (1/5)*Pi .. (1/2)*Pi, color = "Niagara Burgundy"), axes = none, scaling = constrained);%;`
`> display(sector([5, -5], 1 .. 1.5, (1/5)*Pi .. 2*Pi, color = "Green"), axes = none);`
` `
`But I want the green annulus to cross the Niagara Burgundy annulus at the points where the green annulus is open. The green annulus is open with an angle...`

## Creating circles in annulus...

Maple

Hi,

I have succesfully created a annulus. Because I am creating a garden, I am interested in making circular shrubs in the annulus. I mean an annulus filled with small circles.  How do I do that?

I have this annulus;

display(sector([4.5, -5.5], 2.5 .. 3.5, 0 .. 2*Pi, color = "Green"), axes = none, scaling = constrained)

the radius of the small circles should be: (3.5-2.5=1)

## how to make a quart annulus?...

Maple

Hi, I am creating a garden with plan view   in Maple.

I want to create a train in my garden, so i need to create 1/4 annulus. How do I make that?

## How to make a rectangle?...

Maple

Hi,

How can I create a rectangle in Maple knowing 4 points?

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