How to get textbook display of an expression held in a string? - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: How to get textbook display of an expression held in a string? (/thread-4273.html) How to get textbook display of an expression held in a string? - BruceH - 07-01-2015 12:59 AM I have a piece of code that generates an expression as a string. I can't find a way to convert it into a CAS expression (within the program and without simplifying or evaluating it) so that it displays pretty-printed in textbook mode on the history stack when the program ends. Typical example is: "3 NTHROOT (1/8)" which I'd like to see displayed as: \sqrt[3]{1/8} Any suggestions, please? RE: How to get textbook display of an expression held in a string? - Didier Lachieze - 07-01-2015 01:43 AM If s is your string, then the following should work: Code: EXPR("'" + s + "'") or Code: EXPR("QUOTE(" + s + ")") RE: How to get textbook display of an expression held in a string? - BruceH - 07-01-2015 10:37 PM Thanks, the latter version did the trick. I felt sure that I had tried every combination of QUOTE, EXPR and EVAL but clearly not. Thanks again. RE: How to get textbook display of an expression held in a string? - Didier Lachieze - 07-02-2015 03:54 AM Both versions work in the tests I've done. Do you have an example where the first one would not work ?