Print out a Fraction in textbook style
06-19-2018, 11:33 AM
Post: #1
 blevita Junior Member Posts: 29 Joined: Jun 2018
Print out a Fraction in textbook style
Hello

Im new to the HP Prime and im new to the Programming of this calculator.
But im not new to programming at all.

I have played around a bit and find the ability to do own stuff really nice.
Unfortunatley i have not figured out, how to print nice looking fractions out on the terminal.

Could somenone explain me how to write a fraction as an example:

2/7

with this style:

2
--
7

Keep in mind, im talking about the PRINT, or any other, Output function for own apps.

Thank you.
06-19-2018, 11:51 AM (This post was last modified: 06-19-2018 12:36 PM by StephenG1CMZ.)
Post: #2
 StephenG1CMZ Senior Member Posts: 956 Joined: May 2015
RE: Print out a Fraction in textbook style
The Prime terminal does not support pretty-printing.
So if you want a fraction to appear on the terminal its
PRINT(NUM+"/"+DEN)
Or
LF="\n"
SEPRSIZE=MAX(DIM(STRING(NUM)),DIM(STRING(DEN))
SEPR= "-" repeated SEPRSIZE times (TBD)
PRINT(NUM+LF+SEPR+LF+DEN)

If it doesn't have to be on the terminal, you could try writing it as a Note, which allows more formatting.

Stephen Lewkowicz (G1CMZ)
06-19-2018, 12:03 PM
Post: #3
 blevita Junior Member Posts: 29 Joined: Jun 2018
RE: Print out a Fraction in textbook style

The Background behind my question is, that i want to programm an quadratic equation solver.

This solver should output x1, x2 the discriminant and the vertex of the function.
For the vertex i would like to have the equation in the form of:

(x+y)^2-z

I would like to show the y part as a fraction and the z part also if possible.
Therefore i think its not that easy to use your suggestion.

The best way would be to just return the answer. But then i only can return one answer or some coma seperated values which doesnt look very good.
06-19-2018, 12:17 PM
Post: #4
 blevita Junior Member Posts: 29 Joined: Jun 2018
RE: Print out a Fraction in textbook style
Here is an example.

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