Tool to give upper and lower bound of a number. The inequality chained notation a < b < c stands for a < b and b < c which describes a double inequality with a lower and upper bound of the number b.

dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day! A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!

To find upper and lower bounds of a number, make rounding according to a given precision or multiple and return a result with the inequality chained notation.

Example: $ 1.23 $ rounded to one digit after decimal point to upper bound is $ 1.2 $, and $ 1.3 $ to lower bound. The representation with a double inequality is $$ 1.2 < 1.23 < 1.3 $$

dCode find the upper bound and the lower bound of the number according to the required accuracy. Inequality is strict by default, but can sometimes introduce less than or equal signs.

Inequalities display the boundaries in order from the smallest to the biggest limit. But it is possible to write them in reverse $$ 1.3 > 1.23 > 1.2 $$

How to write a definition domain into a chaine inequality?

dCode retains ownership of the online 'Inequality Chained Notation' tool source code. Except explicit open source licence (indicated CC / Creative Commons / free), any 'Inequality Chained Notation' algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any 'Inequality Chained Notation' function (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and no data download, script, copy-paste, or API access for 'Inequality Chained Notation' will be for free, same for offline use on PC, tablet, iPhone or Android ! dCode is free and online.

Need Help ?

Please, check our dCode Discord community for help requests! NB: for encrypted messages, test our automatic cipher identifier!

Questions / Comments

Thanks to your feedback and relevant comments, dCode has developed the best 'Inequality Chained Notation' tool, so feel free to write! Thank you!

Thanks to your feedback and relevant comments, dCode has developed the best 'Inequality Chained Notation' tool, so feel free to write! Thank you!