How should one type numbers like 10^(-2.5) using the 1e... notation in calc using algebraic-mode ? ATM, 1e-2.5 is parsed as (1e-2)*0.5 and indeed evaluates to 5e-3 instead of 3.16e-3.

1 Answer 1


Use algebraic entry: '1*10^-2.5. This is also necessary when using an entry radix of 15 or higher (such as hexadecimal), where e is a valid digit.

  • I find it nevertheless confusing that the parser should split something like -2.5.
    – wilk
    Commented Jun 17, 2020 at 19:03

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