Dec

Decimal display at the largest number of decimal places available

12.4456743

Rnd (Round)

Round the output to the indicted number of decimal places

eg 12.4456743 becomes 12.446 if rounded to 3 decimal places.

Fix

Fix the output to the indicated number of decimal places, padding with zeros if required. This is often used for currency.

eg 12.2025323 becomes 12.20 if fixed to 2 decimal places.

Sci

Display the result in scientific notation with the indicated number of decimal places in the mantissa

eg 135.32454577 becomes 1.354 × 102 when displayed with a 3 decimal place mantissa.

Exa

Keep the result exact if possible

eg (5/2)2 becomes 25/4. 2/10 becomes 1/5.

Sig

Shows the output with the indicated number of significant figures

eg 2.403556 becomes 2.40 if shown with 3 significant figures.

Uns

Keeps the result as an unsimplified exact value if possible

eg 2/10 remains as 2/10.
