Words similar to optional

Example sentences for: optional

How can you use “optional” in a sentence? Here are some example sentences to help you improve your vocabulary:

The deconvolution calculation of the unknown input function I(t) is routinely described by the following three plots: 1) Plot of the calculated I(t) versus time, along with a comparison with the gamma distribution deconvolution (optional) and the model gamma distribution input (optional), 2) Comparison of the calculated deconvolution venous concentration with the experimental data, and 3) Plot of the total amount of absorption versus time.
I find Bollard's superior \?\, used to transcribe both the “optional r ” ambiguous.
The actual file format consists of six columns: sequence number, residue number, three columns for the primary color space (red green blue, RGB) designation of the color, and an optional comment/property column (Figure 1c).
The analysis finds that the new rule would not be significantly burdensome for small entities because use of the profile is optional and that the information contained in the profile is now typically contained a fund's prospectus.
Women's hats are out there, but they're all optional, and the range has shrunk.