issue with large numbers

[gabrielalexandrelopes]

in typst floats are 64 bits, meaning we should be able to handle large numbers such as 10e300. Unfortunately oxifmt is doing a computation that goes out of bounds that prevents writing the typst code:

#strfmt("{0:e}",10000000000000000000)

In my case I'm reading numbers from a json file in typst and using strfmt to display them. Can you fix this?

error: the result is too large
    ┌─ @preview/oxifmt:0.2.1/oxifmt.typ:228:21
    │
228 │   let mantissa = f / calc.pow(10, exponent)
    │                      ^^^^^^^^^^^^^^^^^^^^^^

help: error occurred in this call of function `_strfmt_exp-format`
    ┌─ @preview/oxifmt:0.2.1/oxifmt.typ:374:20
    │
374 │       replacement = _strfmt_exp-format(calc.abs(replacement), exponent-sign: exponent-sign, precision: precision)
    │                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

[PgBiel]

Ah, good catch! Will be taking a look once I can.

[gabrielalexandrelopes]

by the way, I got a temporary solution:

#let toMathRepresentation(number, digits: 2) = {

  if (type(number) != "float" and type(number) != "int") {
    [N/A]
  } else {
    // Define the maximum exponent to prevent overflow
    let max_exponent = 308;

    // Calculate the exponent
    let exponent = calc.floor(calc.log(calc.abs(number)));

    if exponent > max_exponent {
        "Infinity"
    } else {
        // Initialize mantissa
        let scaled_number = calc.abs(number);
        let remaining_exponent = exponent;

        // Scale down by powers of 10 within Typst's limits
        while remaining_exponent > 0 {
            // Determine the largest power of 10 we can divide by without overflow
            let scale_down = calc.min(remaining_exponent, 18);
            scaled_number = scaled_number / calc.pow(10, scale_down);
            remaining_exponent -= scale_down;
        }

        // Once scaled, the result is within [1, 10), so this is our mantissa
        let mantissa = scaled_number;

        // Round the mantissa to the specified number of digits
        let rounded_mantissa = calc.round(mantissa*calc.pow(10,digits))/calc.pow(10,digits);

        // Format the result
        [$#rounded_mantissa times 10^(#exponent)$]
    }
    }
};

maybe you can use this. Cheers!