Use of Latex

[chijioke]

I am having problem with this one.
I want it to appear exactly like the one in the picture. What am I supposed to do that I didn't do well?
$$\begin{array}{|l|r|} \text{No.} & \text{Log} \\ \hline 13.95 & 1.1446 \\ 364 & + 2.5611 \\ \overline{3.7057} \\ \hline 4.32 & 0.6355 \\ \hline 1176 & 3.0702 \\ \hline \end{array}$$

 

[BigBeachBanana]

I am having problem with this one.
I want it to appear exactly like the one in the picture. What am I supposed to do that I didn't do well?
$$\begin{array}{|l|r|} \text{No.} & \text{Log} \\ \hline 13.95 & 1.1446 \\ 364 & + 2.5611 \\ \overline{3.7057} \\ \hline 4.32 & 0.6355 \\ \hline 1176 & 3.0702 \\ \hline \end{array}$$

A big part of coding is debugging your own code. Give that a try.

 

[Otis]

What am I supposed to do that I didn't do well?

Spoiler: Hint

In the first row of numbers, 1.1446 appears in the right column. What caused that to happen? Look at the code for that line.

 

[chijioke]

Sorry, I have been shown this before. I forget that am supposed to use ~ for the empty space at the left. Thanks for the gentle reminder. I now remember.
$$\begin{array}{|l|r|} \text{No.} & \text{Log} \\ \hline 13.95 & 1.1446 \\ 364 & + 2.5611 \\ ~ & \overline{3.7057} \\ \hline 4.32 & 0.6355 \\ \hline 1176 & 3.0702 \\ \hline \end{array}$$

 

[Otis]

supposed to use ~ for the empty space at the left

That's okay, but not necessary. The issue was that you'd forgotten to type the & in that row. It's the & that separates the coding into columns.



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[chijioke]

That's okay, but not necessary. The issue was that you'd forgotten to type the & in that row. It's the & that separates the coding into columns.



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Waou! That's another truth.
$$\begin{array}{|l|r|} \text{No.} & \text{Log} \\ \hline 13.95 & 1.1446 \\ 364 & + 2.5611 \\ & \overline{3.7057} \\ \hline 4.32 & 0.6355 \\ \hline 1176 & 3.0702 \\ \hline \end{array}$$

 

[Otis]

I forgot to point out a typo in your chart.

log(1176) = 3.0704

correct to four decimal places


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[chijioke]

I forgot to point out a typo in your chart.

log(1176) = 3.0704

correct to four decimal places


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Not really. That is negligible. The difference between the logs is just 0.0002. log(1176) = 3.0704 is just an approximation because the solution to $\frac{13.95×364}{4.32}$ is 1175.416667...... So you can see that is an approximation of 1176 as a result of the workings in the table. So it doesn't really matter.
Moreover my main aim of creating this thread is to be guided on how to write the expressions in Latex. Anyway thanks for your observation.

 

[Otis]

$\frac{13.95×364}{4.32}$ is 1175.416667... you can see that is an approximation

So [3.0702 versus 3.0704] doesn't really matter.

Ah, I can see it now that you've explained the reasoning behind the chart. Perhaps, the 1176 ought to be 1175.4

Also, we do not use ellipsis dots after a rounded number because those digits were thrown away after rounding.

We could use ellipsis dots to show repeating 6s, like this: 1175.416666…

Alternatively, we may write a repeating decimal number by placing a bar over the repeating part:

$\displaystyle \frac{13.95×364}{4.32} = 1175.41\overline{6}$

Cheers

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[chijioke]

Ah, I can see it now that you've explained the reasoning behind the chart. Perhaps, the 1176 ought to be 1175.4

Also, we do not use ellipsis dots after a rounded number because those digits were thrown away after rounding.

We could use ellipsis dots to show repeating 6s, like this: 1175.416666…

Alternatively, we may write a repeating decimal number by placing a bar over the repeating part:

$\displaystyle \frac{13.95×364}{4.32} = 1175.41\overline{6}$

Cheers

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Thanks.

 

[Otis]

Hi. Are you now asking for math help? There's a list of exercises (with the word "help") that keeps disappearing and reappearing!

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[chijioke]

Not yet sir. I am preparing a homework help thread that involves a lot of Latex work. So am showing what I know about the problems, where am stuck and where I need help.
Let it not be that I am just looking for someone to do my homework.
But first of all, I need to debug it to ensure that the intended thread appears. That's why the post is appearing and disappearing.
Am not done yet. When am done, I will post it as a new thread in a new section or heading. Thanks.

 

[mmm4444bot]

I need to debug [my LaTeX code] to ensure that [it posts as] intended. That's why the post is appearing and disappearing.

Hello. The forum provides a Preview button. You may use it to check your typing, without having to repeatedly post and delete the thread (if that's what you've been doing). The forum software also saves your typing, so that it will reload into the post-reply field the next time you access the thread. Each time the system saves your typing, a small, green dot appears on the Drafts icon (which is located to the left of the Preview button). Members may also manually save or delete a draft post, by clicking the Drafts icon for the drop-down menu. Sometimes (for reassurance), I will also save my typing to a local text file using manual copy-and-paste, after having first toggled BB code.

?

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[chijioke]

Where can I find the preview button?

 

[mmm4444bot]

Where can I find the preview button?

It's at the right end of the toolbar, above the text field where you type your posts.

Dr. Peterson posted a screen shot here.

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[chijioke]

I have seen it. Thank you.
What if I want to save my work as draft maybe because I couldn't finish, where can I find the draft button?

 

[BigBeachBanana]

I have seen it. Thank you.
What if I want to save my work as draft maybe because I couldn't finish, where can I find the draft button?

To the left of the preview button.

 

[mmm4444bot]

where can I find the draft button?

Did you see post #53? That post contains other useful information, too.

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