Incorrect division in natural mode

[0b101]

Describe the bug

When in natural writing mode, the calculator gives the wrong answer. For example, when I type in 5/4/3/2 the calculator says that the answer is 15/8 = 1.875 when the answer should really be 5/24 = 0.2083333. If I type in 5/4/3/2 in natural mode, then I switch to linear mode it says that it's really calculating (5)/((4)/((3)/(2))) instead of ((5 / 4) / 3) / 2

Screenshots

Left/top is natural mode, right/bottom is linear mode

To Reproduce

Steps to reproduce the behavior:

1. Go to the Calculation app
2. Type 5/4/3/2
3. See incorrect answer
4. Switch to linear display mode
5. Type 5/4/3/2
6. See correct answer

Expected behavior

The calculator should correctly follow the order of operations in both writing modes and display 5/4/3/2 = 5/24 = 0.2083333

Environment

• Epsilon version 10.1.0
• Simulator and device

[artaxxx]

Well I don't feel that there is a bug here. It's inherent to the use of natural writing.

In natural writing, when you type "2/3" then "/4", it displays "2/(3/4)". If you want to input "(2/3)/4" just press the right arrow key after "2/3" :

or

The priority is represented by the length of the fraction bar.

Do you agree?

[0b101]

I guess I'll have to agree, but it might be confusing for some students who are expecting one answer, but get another.

[artaxxx]

Sure! I've just tried with other calculators and https://www.geogebra.org/graphing and it's the same behavior.

But the 2D natural display makes things clear, right?

[0b101]

Yes, I believe so. While I have your attention, is there any planned support for mixed fractions?

[Ecco]

Definitely not a bug. Works the same way on other platforms, and there is no ambiguity on the display. 😄

[artaxxx]

Could you please give me an example of what you're looking for?

[0b101]

It would be nice if typing in 30/16 could result in 15/8 = 1 7/8 = 1.875
Edit: #942 has more information

[artaxxx]

Ok! I wasn't familiar with this writing. You should open a new issue about this