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<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"

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<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="de.no.no.fragments.SomeFragment">

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<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"

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### normalization so that the points have zero mean and unit standard deviation - important for numerical reasons
    m = np.mean(input_points[:2], axis=1)
    maxstd = max(np.std(input_points[:2], axis=1)) + 1e-9
    C1 = np.diag([1/maxstd, 1/maxstd, 1])
    C1[0][2] = -m[0]/maxstd
    C1[1][2] = -m[1]/maxstd
    input_points = np.dot(C1, input_points)

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// E1: try it with an object
// 1.1 add 2 properties to the user object: one number (e.g. age) and one boolean (e.g. germanCitizenship)
// 1.2 print the person's name, age and citizenship using template literals

let user = {
    firstName: "Thomas",
    lastName: "Hummel"
}

console.log("The name is " + user.firstName + " and the age is " + user.age);

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// E2. You are given an array of user objects:  
// 2.1 Print the name of the first user in the array
// 2.2 Print the age of the last user in the array
// 2.3 Find the name of the oldest user in the array
// 2.4 Find the name of the oldest user who is also german

let user1 = {
    firstName: "Paul",
    lastName: "Anton",
    // age:

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let person = {
    firstName: "Paul",
    lastName: "Anton",
    age: 28,
    job:
        {city: "Hamburg"},
    bikes: ["Mountain Bike", "Road bike", "Cyclo Cross"],
    minutesOnSocialMedia: [45, 65, 70, 120, 300]
}

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// E0. 
// 0.1 Add another property to each book object. e.g. language
// 0.2 Write a function that prints the book language.
// 0.3 Write a function that prints the book details in the language in which the book is written: 

// if the language of the book is "english", print the message in english:
// "The price of the book is ... and the title is ..."

// if the language of the book is "german", print the message in german

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let book1 = {
    title: "Gone with the wind",
    price: 30
}

let book2 = {
    title: "The godfather",
    price: 40
}

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let books = [
    {
        pages: 200,
        year: 2020,
        author: {
            firstName: "Paul",
            lastName: "Anton"
        },
        language: "DE"