For C-x =, explain how to use CTRL key.
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@ -134,15 +134,17 @@ flashing the screen. The error also discards any input you have typed
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ahead.
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Some commands display informative messages in the echo area. These
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messages look much like error messages, but they are not announced with
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a beep and do not throw away input. Sometimes the message tells you
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what the command has done, when this is not obvious from looking at the
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text being edited. Sometimes the sole purpose of a command is to show
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you a message giving you specific information---for example, @kbd{C-x =}
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displays a message describing the character position of point in the text
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and its current column in the window. Commands that take a long time
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often display messages ending in @samp{...} while they are working, and
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add @samp{done} at the end when they are finished.
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messages look much like error messages, but they are not announced
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with a beep and do not throw away input. Sometimes the message tells
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you what the command has done, when this is not obvious from looking
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at the text being edited. Sometimes the sole purpose of a command is
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to show you a message giving you specific information---for example,
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@kbd{C-x =} (hold down @key{CTRL} and type @kbd{x}, then let go of
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@key{CTRL} and type @kbd{=}) displays a message describing the
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character position of point in the text and its current column in the
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window. Commands that take a long time often display messages ending
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in @samp{...} while they are working, and add @samp{done} at the end
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when they are finished.
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@cindex @samp{*Messages*} buffer
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@cindex saved echo area messages
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