Question 1

How to install cpc CLI on Linux?

Accepted Answer

Install using Cargo by running `cargo install cpc`, or download pre-built binaries from the GitHub Releases page and place them in your system's binary directory, such as /usr/local/bin.

Question 2

cpc vs bc for command-line calculations?

Accepted Answer

cpc specializes in unit-aware calculations with high precision, while bc is a general-purpose arbitrary-precision calculator. cpc is better for mixed-unit arithmetic, but bc might be faster for pure numeric computations without units.

Question 3

How to add a custom unit in cpc?

Accepted Answer

You need to modify the Rust source code by adding the unit to the enum in `src/units.rs` and updating the lexer in `lexer.rs`, as detailed in the 'Adding a unit' section of the README, which requires Rust programming knowledge.

Question 4

Is cpc good for engineering calculations?

Accepted Answer

Yes, cpc's high-precision decimal arithmetic and broad unit support make it suitable for engineering tasks, but note that it lacks some advanced conversions like between Power and Voltage using sqrt, as mentioned in potential improvements.

Question 5

Can cpc handle temperature conversions?

Accepted Answer

Yes, cpc supports temperature units including Celsius and Fahrenheit, and can perform automatic conversions in expressions, as listed in the supported unit types on the documentation page.

Question 6

How to use cpc in a Rust project?

Accepted Answer

Add cpc as a dependency in your `Cargo.toml`, then use the `eval` function from the crate to parse and evaluate expressions with units, similar to the API usage example provided in the README.

Question 7

What's the performance like with 128-bit decimals?

Accepted Answer

128-bit decimal floating-point arithmetic is more accurate but can be slower than standard binary floats, so cpc might not be ideal for performance-critical applications requiring real-time processing.

cpc

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