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TiKZ won't graph 1/sqrt(x)

Path won't show up in tikzTikz and directed graphtikz-Graph problemTikZ manual example won't compileText in Tikz GraphHow to prevent rounded and duplicated tick labels in pgfplots with fixed precision?TikZ with sqrt( ) functionTikz graph errorTIkZ-pic (with sub-pics) won't scaleTikz Graph naming

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

3

Evening!

Posting a quick message here cause I have a small problem with TiKZ. I've been trying to plot the function 1/sqrt(x), and it just... won't work.

Here is the code I've been typing:

begintikzpicture[scale = 1]
beginaxis[
 domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=10000,
 axis lines=center,
]
 draw[thick, samples = 1000, blue] plot[domain=0:100] (x, 1/sqrt(x));
endaxis
endtikzpicture

But here's what I get:

I tried with other functions, still have problems.
For example, if I just plot sqrt(x), here's what I get:

At least, the shape is now right... but the values are completely off.

So if anyone should have any idea on how to correct that code, I'd be really grateful, thanks :)

tikz-pgf

share|improve this question

edited 8 hours ago

Phelype Oleinik

29.7k64998

asked 8 hours ago

ArthurArthur

184

New contributor

Arthur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Welcome to TeX-SE! 1/sqrt(x) has a singularity at 0 and should fall for larger x. But the technical reason why it does not work is that you set the braces wrongly, (x, 1/sqrt(x)) is correct but still has the singularity.
  
  – marmot
  8 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Possibly the values are off too because you didn't specify the (correct) pgfplotssetcompatibility (which is why it's important to provide a fully functional MWE ;).
  
  – JJM Driessen
  8 hours ago
  
  

  
  
  
  

add a comment | 

3

Evening!

Posting a quick message here cause I have a small problem with TiKZ. I've been trying to plot the function 1/sqrt(x), and it just... won't work.

Here is the code I've been typing:

begintikzpicture[scale = 1]
beginaxis[
 domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=10000,
 axis lines=center,
]
 draw[thick, samples = 1000, blue] plot[domain=0:100] (x, 1/sqrt(x));
endaxis
endtikzpicture

But here's what I get:

I tried with other functions, still have problems.
For example, if I just plot sqrt(x), here's what I get:

At least, the shape is now right... but the values are completely off.

So if anyone should have any idea on how to correct that code, I'd be really grateful, thanks :)

tikz-pgf

share|improve this question

edited 8 hours ago

Phelype Oleinik

29.7k64998

asked 8 hours ago

ArthurArthur

184

New contributor

Arthur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Welcome to TeX-SE! 1/sqrt(x) has a singularity at 0 and should fall for larger x. But the technical reason why it does not work is that you set the braces wrongly, (x, 1/sqrt(x)) is correct but still has the singularity.
  
  – marmot
  8 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Possibly the values are off too because you didn't specify the (correct) pgfplotssetcompatibility (which is why it's important to provide a fully functional MWE ;).
  
  – JJM Driessen
  8 hours ago
  
  

  
  
  
  

add a comment | 

Evening!

Posting a quick message here cause I have a small problem with TiKZ. I've been trying to plot the function 1/sqrt(x), and it just... won't work.

Here is the code I've been typing:

begintikzpicture[scale = 1]
beginaxis[
 domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=10000,
 axis lines=center,
]
 draw[thick, samples = 1000, blue] plot[domain=0:100] (x, 1/sqrt(x));
endaxis
endtikzpicture

But here's what I get:

I tried with other functions, still have problems.
For example, if I just plot sqrt(x), here's what I get:

At least, the shape is now right... but the values are completely off.

So if anyone should have any idea on how to correct that code, I'd be really grateful, thanks :)

tikz-pgf

share|improve this question

edited 8 hours ago

Phelype Oleinik

29.7k64998

asked 8 hours ago

ArthurArthur

184

New contributor

Arthur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

begintikzpicture[scale = 1]
beginaxis[
 domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=10000,
 axis lines=center,
]
 draw[thick, samples = 1000, blue] plot[domain=0:100] (x, 1/sqrt(x));
endaxis
endtikzpicture

share|improve this question

edited 8 hours ago

Phelype Oleinik

29.7k64998

asked 8 hours ago

ArthurArthur

184

New contributor

Arthur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 8 hours ago

Phelype Oleinik

29.7k64998

asked 8 hours ago

ArthurArthur

184

New contributor

Arthur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 8 hours ago

Phelype Oleinik

29.7k64998

edited 8 hours ago

Phelype Oleinik

29.7k64998

asked 8 hours ago

ArthurArthur

184

New contributor

Arthur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 8 hours ago

ArthurArthur

184

2 Answers
2

active

oldest

votes

8

Diagram of the function 1/sqrt(x) is the following:

In your MWE you have mix of pgfplotsand plain tikz syntax. Better is stick to just one of them. For example to pgfplots:

documentclass[border=3mm]standalone% <-- changed
usepackagepgfplots
pgfplotssetcompat=1.16

begindocument
 begintikzpicture
beginaxis
 ymin=0, ymax=1,
 axis lines=center,
 ]
 addplot [thick, domain=0:100, samples=100] 1/sqrt(x);
endaxis
 endtikzpicture
enddocument

share|improve this answer

edited 8 hours ago

answered 8 hours ago

ZarkoZarko

137k872181

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Oh, ok, thanks for the answer. I tried it, it works great! :)
  
  – Arthur
  8 hours ago
  

  
  
  
  

add a comment | 

4

As mentioned in the comments above, the syntax was incorrect. Since you seem to be using pgfplots, here is the way to do it. I exclude the singularity, and in pgfplots there is no need to put a backslash before x. Also I reduced the number of samples.

documentclass[tikz,border=3.14mm]standalone
usepackagepgfplots
pgfplotssetcompat=1.16
begindocument
begintikzpicture[scale = 1]
beginaxis[domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=501,
 axis lines=center,
]
 addplot[domain=0.0001:100] 1/sqrt(x);
endaxis
endtikzpicture
enddocument

share|improve this answer

answered 8 hours ago

marmotmarmot

136k6177325

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for both your answers. Both work really well, I really appreciate it. Have a nice evening!
  
  – Arthur
  8 hours ago
  

  
  
  
  

add a comment | 

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8

Diagram of the function 1/sqrt(x) is the following:

In your MWE you have mix of pgfplotsand plain tikz syntax. Better is stick to just one of them. For example to pgfplots:

documentclass[border=3mm]standalone% <-- changed
usepackagepgfplots
pgfplotssetcompat=1.16

begindocument
 begintikzpicture
beginaxis
 ymin=0, ymax=1,
 axis lines=center,
 ]
 addplot [thick, domain=0:100, samples=100] 1/sqrt(x);
endaxis
 endtikzpicture
enddocument

share|improve this answer

edited 8 hours ago

answered 8 hours ago

ZarkoZarko

137k872181

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Oh, ok, thanks for the answer. I tried it, it works great! :)
  
  – Arthur
  8 hours ago
  

  
  
  
  

add a comment | 

8

Diagram of the function 1/sqrt(x) is the following:

In your MWE you have mix of pgfplotsand plain tikz syntax. Better is stick to just one of them. For example to pgfplots:

documentclass[border=3mm]standalone% <-- changed
usepackagepgfplots
pgfplotssetcompat=1.16

begindocument
 begintikzpicture
beginaxis
 ymin=0, ymax=1,
 axis lines=center,
 ]
 addplot [thick, domain=0:100, samples=100] 1/sqrt(x);
endaxis
 endtikzpicture
enddocument

share|improve this answer

edited 8 hours ago

answered 8 hours ago

ZarkoZarko

137k872181

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Oh, ok, thanks for the answer. I tried it, it works great! :)
  
  – Arthur
  8 hours ago
  

  
  
  
  

add a comment | 

Diagram of the function 1/sqrt(x) is the following:

In your MWE you have mix of pgfplotsand plain tikz syntax. Better is stick to just one of them. For example to pgfplots:

documentclass[border=3mm]standalone% <-- changed
usepackagepgfplots
pgfplotssetcompat=1.16

begindocument
 begintikzpicture
beginaxis
 ymin=0, ymax=1,
 axis lines=center,
 ]
 addplot [thick, domain=0:100, samples=100] 1/sqrt(x);
endaxis
 endtikzpicture
enddocument

share|improve this answer

edited 8 hours ago

answered 8 hours ago

ZarkoZarko

137k872181

documentclass[border=3mm]standalone% <-- changed
usepackagepgfplots
pgfplotssetcompat=1.16

begindocument
 begintikzpicture
beginaxis
 ymin=0, ymax=1,
 axis lines=center,
 ]
 addplot [thick, domain=0:100, samples=100] 1/sqrt(x);
endaxis
 endtikzpicture
enddocument

share|improve this answer

edited 8 hours ago

answered 8 hours ago

ZarkoZarko

137k872181

answered 8 hours ago

ZarkoZarko

137k872181

answered 8 hours ago

ZarkoZarko

137k872181

4

As mentioned in the comments above, the syntax was incorrect. Since you seem to be using pgfplots, here is the way to do it. I exclude the singularity, and in pgfplots there is no need to put a backslash before x. Also I reduced the number of samples.

documentclass[tikz,border=3.14mm]standalone
usepackagepgfplots
pgfplotssetcompat=1.16
begindocument
begintikzpicture[scale = 1]
beginaxis[domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=501,
 axis lines=center,
]
 addplot[domain=0.0001:100] 1/sqrt(x);
endaxis
endtikzpicture
enddocument

share|improve this answer

answered 8 hours ago

marmotmarmot

136k6177325

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for both your answers. Both work really well, I really appreciate it. Have a nice evening!
  
  – Arthur
  8 hours ago
  

  
  
  
  

add a comment | 

4

As mentioned in the comments above, the syntax was incorrect. Since you seem to be using pgfplots, here is the way to do it. I exclude the singularity, and in pgfplots there is no need to put a backslash before x. Also I reduced the number of samples.

documentclass[tikz,border=3.14mm]standalone
usepackagepgfplots
pgfplotssetcompat=1.16
begindocument
begintikzpicture[scale = 1]
beginaxis[domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=501,
 axis lines=center,
]
 addplot[domain=0.0001:100] 1/sqrt(x);
endaxis
endtikzpicture
enddocument

share|improve this answer

answered 8 hours ago

marmotmarmot

136k6177325

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for both your answers. Both work really well, I really appreciate it. Have a nice evening!
  
  – Arthur
  8 hours ago
  

  
  
  
  

add a comment | 

As mentioned in the comments above, the syntax was incorrect. Since you seem to be using pgfplots, here is the way to do it. I exclude the singularity, and in pgfplots there is no need to put a backslash before x. Also I reduced the number of samples.

documentclass[tikz,border=3.14mm]standalone
usepackagepgfplots
pgfplotssetcompat=1.16
begindocument
begintikzpicture[scale = 1]
beginaxis[domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=501,
 axis lines=center,
]
 addplot[domain=0.0001:100] 1/sqrt(x);
endaxis
endtikzpicture
enddocument

share|improve this answer

answered 8 hours ago

marmotmarmot

136k6177325

documentclass[tikz,border=3.14mm]standalone
usepackagepgfplots
pgfplotssetcompat=1.16
begindocument
begintikzpicture[scale = 1]
beginaxis[domain=0:100,
 xscale=1,yscale=1,
 xmin=0, xmax=100,
 ymin=0, ymax= 1,
 samples=501,
 axis lines=center,
]
 addplot[domain=0.0001:100] 1/sqrt(x);
endaxis
endtikzpicture
enddocument

share|improve this answer

answered 8 hours ago

marmotmarmot

136k6177325

answered 8 hours ago

marmotmarmot

136k6177325

answered 8 hours ago

marmotmarmot

136k6177325