.NET/Java PDF, Tiff, Barcode SDK Library

Another way to start strong is to tell an anecdote a brief story while you display no graphic at all on the slide In this case, the anecdote should communicate the point of the headline of the slide be sure that your story lasts no more than a minute or two, because you have many more slides to present If you want to include a longer anecdote that relates to more of the presentation, return to the story template to see how to weave the story through the Key Point, Explanation, or Detail slides Since you won t need a graphic if you re telling a brief verbal anecdote during the Setting slide, you could simply sketch the words Black out screen on the slide Or take care of things now: Right-click the slide, and then select Format Background on the shortcut menu.

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my_number = 15 my_code = %Q{#{my_number} * 2} puts eval(my_code)

The eval method simply executes (or evaluates) the code passed to it and returns the result. The first example made eval execute puts 2 + 2, whereas the second used string interpolation to build a expression of 15 * 2, which was then evaluated and printed to the screen using puts.

In Ruby, a binding is a reference to a context, scope, or state of execution. A binding includes things such as the current value of variables and other details of the execution environment. It s possible to pass a binding to eval and to have eval execute the supplied code under that binding rather than the current one. In this way, you can keep things that happen with eval separate from the main execution context of your code. Here s an example:

In the Format Background dialog box, click Fill in the left pane, click Solid Fill in the right pane, and in the Color drop-down list, click Black Make sure that the Transparency control is set to 0%, and then click Close If you re using a Tablet PC, sketch a note to yourself using white ink reminding you to tell your anecdote here, as shown on the upper-right slide in Figure 7-4 You ll remove the note later Making the background of any slide black in your storyboard ensures that when you review the presentation in Slide Sorter view, you see exactly where among the sequence of slides you will fade to black and what happens on the slides immediately before and after.

ou ve seen that lists are useful when you want to group values into a structure and refer to each value by number. In this chapter, you learn about a data structure in which you can refer to each value by name. This type of structure is called a mapping, and the only built-in mapping type in Python is the dictionary. The values in a dictionary don t have any particular order but are stored under a key, which may be either a number, a string, or even a tuple.

def binding_elsewhere x = 20 return binding end remote_binding = binding_elsewhere x = 10 eval("puts x") eval("puts x", remote_binding)

10 20

When you advance past the Title slide to the black slide, say something like, I know you re expecting me to start with bullet points, but I m going to start with a story instead Your spoken words and the blank screen work together to create a sense of surprise, focusing attention intensely on you and what you say next a good example of a strong way to start..

This code demonstrates that eval accepts an optional second parameter, a binding, which in this case is returned from the binding_elsewhere method. The variable remote_binding contains a reference to the execution context within the binding_elsewhere method rather than in the main code. Therefore, when you print x, 20 is shown, as x is defined as equal to 20 in binding_elsewhere!

Note You can obtain the binding of the current scope at any point with the Kernel module s binding

When you decide what to sketch, it s important that you choose the visual elements that are the best t for an audience. If you re presenting to executives in the nancial industry, as in this example, it might not be a good t to start with a sketch of a full-screen photograph on the Setting slide. A better t would be to sketch the meaningful visuals these executives are more accustomed to seeing charts and graphs. When you sketch a chart that everyone in the audience instantly recognizes (as in the example shown on the lower-left slide in Figure 7-4), you quickly connect with the audience because you re speaking the same visual language.