@LE_10094025 :I see that you are defining a number of physics and mathematical constants at the top of your sheet. You should know that Prime knows the value of quite some of these out of the box.
(e.g. if you type at the very top of your worksheet:
c=
you will see that it produces the value for the speed of light in vacuum. And look carefull at the c now: it's become green indicating that it's a 'constant'.)
Also know that those constants are defined with many digits, but they are not all 'up to standard'. The units of the SI have been redefined in terms of physics constants, which means that e.g. the Plank and Boltzmann constant are now defined values, and units are derived from them. See here for more info.
Success!
Luc
