Re: [ccp4bb] Calculating sigma value

Dale, >Clearly you have a passion for the SI. After our last discussion of > this topic on the CCP4BB I downloaded "The International System of > Units: NIST Special Publication 330" and actually read it. > (https://dx.doi.org/10.6028/NIST.SP.330e2008) The SI is a fine system > of units

Re: [ccp4bb] Calculating sigma value

Dear Ian, Clearly you have a passion for the SI. After our last discussion of this topic on the CCP4BB I downloaded "The International System of Units: NIST Special Publication 330" and actually read it. (https://dx.doi.org/10.6028/NIST.SP.330e2008) The SI is a fine system of units and this

Re: [ccp4bb] Calculating sigma value

Dale, On 19 April 2018 at 17:36, Dale Tronrud wrote: >The meaning of the term "e/A^3" as used in Coot has nothing to do > with the charge of an electron. The intention of its authors is to > indicate that the value being represented by the map is the density of >

Re: [ccp4bb] Calculating sigma value

The meaning of the term "e/A^3" as used in Coot has nothing to do with the charge of an electron. The intention of its authors is to indicate that the value being represented by the map is the density of electrons. It is the number of electrons per cubic Anstrom at that point in space. I,