TI-H: I need Help with something?

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TI-H: I need Help with something?

I need some help understanding part of the link protocol for the TI-85.  Any
help would be gratefully appreciated.


I'll use the information in the Link-protocol Document as the reference for
my question.


I am trying to understand how a real number variable is packetted into the
message packet.  In the doc the variable sent is  Pi.  As you look at the
actual bytes being transmitted, you can see the numbers for Pi.  These
numbers are hex numbers and the check sum is calculated with the hex value.
How does this 3.145926d, get converted to 31 41 59 26h.  And then when you
receive this, how is it converted back to a decimal value?