Vinculum / Overline / Repeating Decimal

[TeacherNightOwl]

Hello,

How do I get an overline in a repeating decimal? Ie, the fraction of one-seventh produces a decimal value of 0.1428514285... with the "14285" repeating indefinitely. I would like to be able to place a line over the "14285" to show that it repeats indefinitely.

Reading through "Help," I learned that I need to use "Ctrl+-" or "Math > Overhead Operator > vector."

When I use that sequence, I get the vector arrow rather than the overline.

Can someone point me in the correct direction, please? Or tell me where I am making a mistake?

TeacherNightOwl

[TeacherNightOwl]

I finally figured out how to get what I need...

If you are writing the one-seventh value listed above - 0.1428514285...- here are the steps that I used...
1.) 0.14285
2.) Space (hit the spacebar once)
3.) 14285 (this is the second set of repeating values)
4.) Keyboard shortcut: "Ctrl+=" (Do not use the quotation marks) or if you use the Menu Bar: Math > Overhead Operators > Overline

The result show look like this: 0.1428514285

One last thing to keep in mind...
When you save the equation, MathCast removes the space from step 2 mentioned above. If you re-open the equation, you will need to re-enter that space or the overline will be over the whole number.

TeacherNightOwl

[Church_of_Lambda]

Hello TeacherNightOwl,

"One last thing to keep in mind...
When you save the equation, MathCast removes the space from step 2 mentioned above. If you re-open the equation, you will need to re-enter that space or the overline will be over the whole number."

Your creative solution works, as long as the space-character is present in the Rapid Mathline. But when the save-function weeds out "superfluous" spaces, this renders your workaround useless. The space-character creates only a transient, block-like structure.

Let ‹ be the block-start marker and › the block-end marker, respectively:

I typed into the Mathline:

1.)   0.14285‹14285›

2.)   Ctrl+=      (Or if you want to use the Menu Bar: Math > Overhead Operators > Overline)

Now the block is permanent and Mathcast will remember it.