BUILT-IN MATHEMATICA SYMBOL

# Clock

Clock[]
represents a clock variable whose value cycles continuously from 0 to 1 once per second when it appears inside a dynamically updated object such as a Dynamic.

Clock[t]
cycles from 0 to t every t seconds.

Clock[vmax, t]
cycles from 0 to every t seconds.

Clock[{vmin, vmax}, t]
cycles through the range to every t seconds.

Clock[{vmin, vmax}]
cycles through the range to over the course of seconds.

Clock[{vmin, vmax, dv}]
cycles from to in steps of dv, spending dv seconds at each value.

Clock[{vmin, vmax, dv}, t]
cycles from to in steps dv every t seconds.

Clock[vals, t, n]
goes through the cycle only n times, then always yields only the maximum value.

## DetailsDetails

• The base for all times used by Clock is the creation time of the cell in which Clock appears.
• gives a value that ranges from to at a rate of one unit per second.
• Clock[{vmin, Infinity}] gives a value that ranges from to at a rate of one unit per second.
• Clock[{vmin, Infinity, dv}] ranges from to in steps of dv, spending dv seconds at each value.

## ExamplesExamplesopen allclose all

### Basic Examples (2)Basic Examples (2)

Create a clock value that cycles continuously from 0 to 1 once per second:

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Use Clock to trigger updates for some time interval:

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