It the room is not simply a rectangle or square, you can cut it into a series of smaller, imaginary portions. Take the length and width of these, calculate the area of each segment, then add everything together to get the total floorspace area. For instance, imagine you have an "L" shaped room: The long part of the "L" is 14 feet (4.3m) long and 8 feet (2.4m) on one end and 12 feet (3.7m) on the other. The other walls on the part of the "L" that sticks out are 6 feet (1.8m) and 4 feet (1.2m) long. This means you can divide the room into two rectangles. One will be 14 feet (4.3m) by 8 feet (2.4m). The other will be 6 feet (1.8m) by 4 feet (1.2m). Calculating the area of each rectangle, then adding the sums together gives you a total floorspace of 136 feet (41m) square. If you have something like floor space on the interior of a closet, calculate this separately, then add it to your total. If there is a 2 feet (0.61m) by 3 feet (0.91m) closet off of your "L" shaped room for instance, add its area of 6 feet (1.8m) square to the main floor area to get a total of 142 feet (43m) square. Plan on buying extra flooring to account for these. That way you'll have enough material. For instance: Imagine you have a bay window that juts out in a trapezoidal shape. The base of this trapezoid (an imaginary line going from one end of its widest point to the other) is 4 feet (1.2m). The height of the trapezoid (the distance from the imaginary line of the base to the point where the wall starts under the window) is 0.5 feet (0.15m). Multiply these measurements to get a hypothetical rectangle with an area of 2 feet (0.61m) square. The sides of the trapezoid will angle inwards, making the actual area less than 2 feet (0.61m) square. You'll cut the flooring material to fit the trapezoid later, and discard the excess. Check your floorspace and see there are things like a kitchen island, support beam, or floor vents that will not need to be covered by flooring. Subtract the area of these obstructions from the total area of floorspace to get the actual amount you need covered.
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One-sentence summary -- Divide non-rectangular rooms into smaller segments. Add any extra floorspace area. Account for any angular areas. Subtract the area of any obstructions on the floor.

When you feel marginally comfortable with vibrato and have a strong technique, you're ready to start using vibrato when playing songs. Adding this technique to a song you already know enables you to understand how vibrato enriches the music. If you start with a song you already know, you won't have to worry about hunting for the notes to play as well as figuring out where to add vibrato. You can simply focus on the vibrato. It's a good idea to start with slower songs, so you won't feel rushed trying to slip in the vibrato. The broad, deep vibrations of arm vibrato lend themselves best to somber melodies that evoke an intense emotional response. In songs such as "Ave Maria" you can use arm vibrato to great effect. Arm vibrato is typically most suitable for notes that are held out for a long time. This will enable you to get the most vibrations out of the tone. Most songs you play on violin are not entirely of the same tempo. Using arm vibrato in slow sections can add intensity and build tension in the music. Adding wrist vibrato during faster sections livens the mood and helps release that tension. Watch videos of famous violinists, such as Joshua Bell or Itzhak Perlman, to see how they use vibrato when playing. Make a note of when they switch to different types of vibrato to enhance the mood of the song.
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One-sentence summary -- Start by adding vibrato to songs you already know. Try arm vibrato for slow or sad songs. Combine vibrato techniques to add flair and emotion.

You can purchase a nutrient test to determine if your soil is lacking any necessary nutrients for a healthy tree. If you do fertilize, use only a slow-release fertilizer and don't apply the fertilizer after August. Birch trees can grow 40 to 60 feet (12.2 to 18.3m) (12 to 18 m) tall, with a canopy spread of 20 to 25 feet (6.1 to 7.6m) (6 to 7 m). As you see the branches growing toward other trees, buildings, or power lines, prune them back with pruning shears to avoid entanglement.
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One-sentence summary -- Fertilize only if a soil test determines that nutrients are lacking. Prune the branches as they approach other trees or structures.

This works best for images that are small and can flow seamlessly into each other. You can use these controls to adjust the spacing between the tiled images, whether or not they're mirrored, and the alignment. This is especially useful if you want to add watermarks to your slides. Setting a background image with a high transparency will allow you to use an image as a watermark without obscuring or distracting from the information on the slides. This menu allow you to select from a variety of different effects that you can apply to your background image. You'll see a preview of each in the menu, as well as the name if you hold your cursor over it. Click the "Artistic Effects" menu and select the effect you want to use. When you select an effect, additional options may appear beneath it. The options vary depending on the effect you chose. This will change all of the slides in your presentation to use the background image and effects you selected.
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One-sentence summary --
Check the "Tile picture as texture" to turn the image into a tiled texture. Adjust the tiling effect with the controls below. Use the transparency slider to adjust the image transparency. Click the "Effects" button at the top of the "Format Background" menu to apply effects. Click "Apply to All" to apply the effects to all of your slides.