cosmicfish_pylib.utilities.significant_digits

cosmicfish_pylib.utilities.significant_digits(num_err, mode=0)

This function returns the number in num_err at the precision of error.

Parameters:

• num_err (tuple) – (number, error) input number and error in a tuple.
• mode (int) –

  (optional) operation to use to build the number

  0 – use ceil

  1 – use round

  2 – use floor

Returns:

a number with all the significant digits according to error

Return type:

float