সাঁচ:Physconst/data/doc

This is the /data subpage for সাঁচ:T. It stores all of the values used by the main template.

Usage

This subpage uses two switch statements to determine the data sent back to the main template. Use the template below for ease of adding a new constant.

     | name =  {{#switch: {{{2}}}
                | symbol = symbol
                | val = significand of physical constant value
                | un1 = standard uncertainty (with leading zeroes)
                | unc = EITHER (standard uncertainty digits; concise form) OR blank if exact
                | round = digits after decimal for default rounding; see below
                | exp = exponent of value
                | runc = significand of relative standard uncertainty
                | rexp = exponent of relative standard uncertainty
                | unit = unit
                | ref = reference footnote (in <ref>...</ref> tags)

Rounding

সাঁচ:T can auto-round a value to the most digits such that the standard uncertainty is no more than 0.5 units in the last place. In other words:

${\text{val}}_{round}\pm \text{un1}>\text{val}\mp (0.5*\text{un1})$

This can be seen visually below. A correctly-rounded value will show green for the first two columns and red for the third. If this is not the case, the auto-round value will need to be adjusted.

Please note that h is accurate, but shows all three columns green due to the number of 0s in the value.