Number Manipulation on Linux


Significant Figures
The following code calculates a number to 3 significant figures.
typeset -E3 newvar=$MyVariable
Example
#Calculate to 3 Significant Figure
MyVariable=123.4567
typeset -E3 newvar=$MyVariable
echo $newvar
123

For 5 significant figures change -E3 to -E5
Example
#Calculate to 5 Significant Figure
MyVariable=123.4567
typeset -E5 newvar=$MyVariable
echo $newvar
123.46
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