Temperature conversion
======================

American people  tend to use  Fahrenheits in online recipes.  Our owen,
however, uses degrees  of Celsius. So my wife often  asks me to convert
these units QUICKLY. And as you  may know the units(1) does not include
this particular conversion.

So I put this text to my .zshrc:

# most common units conversions:
ftoc() {echo "($1 - 32)*5/9"|bc -l} # Fahrenheit to Celsius
ctof() {echo "$1 *9/5 +32"|bc -l} # Celsius to Fahrenheit