numr
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https://terminaltrove.com/numr/
A text calculator for natural language expressions with a vim-style TUI.
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numr is a text-based calculator for natural-language expressions with a Vim-style TUI with a companion CLI.
It comes with expressions that can be described in natural language which is used to evaluate percentages, variables, functions, constants, number bases and unit arithmetic. Examples include: "20% of 150", "2 hours + 30 mins" and "$100 in euros" and numr calculates this with the result on the right hand side.
Other features of numr include, currency and cryptocurrency conversions using both live and cached offline exchange rates with math functions (sin(), cos(), factorial()) as found in scientific calculators. It handles more unit conversions with syntax highlighting and supports both standard or Vim key-bindings for navigation.
numr is very useful as an alternative to users who are students, developers, data analysts and programmers who need to do scratch calculations and quick conversions or need an alternative to eva, vectro, kalker and many other terminal calculators.
