Details

This message is generated when the scale of a result exceeds the scale of numbers that can be represented in the version of the Wolfram Language that is in use.
This message is generated by arithmetic overflow within numerical functions.
The largest number that can be represented in a particular version of the Wolfram Language can be found by evaluating $MaxNumber.
Off[message] switches off the message; On[message] switches it on. For example: Off[General::ovfl].

Examples

An error occurs because the result is larger than the value of $MaxNumber on this computer:

Overflow often occurs as a result of arithmetic within functions such as FindRoot:

In this example the problem can be resolved by choosing a better starting value:

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