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How do I plot the graph of arctan using Tikz, NOT using pgfplots

0

I am trying to plot the atan() function, but it keeps giving me an error. This is my code. What in the world am I doing wrong? Why doesn't it plot on the graph I made. Also I cannot use pgfplots.

begintikzpicture
draw [help lines] (-5,-pi) grid (5,pi);
draw [->,thick] (-5,0) -- (0,0) -- (5,0) node [below] small $x$;
draw [->,thick] (0,-pi) -- (0,pi) node [left] small $y$;
foreach x in -5,-4,...,5 draw (x, -0.1) -- (x,0.1);
foreach x in -5,-4,...,-1 node at (x, -0.1) [below] tiny $x$;
foreach x in 1,2,...,5 node at (x, -0.1) [below] tiny $x$;

draw (-0.1, -pi/2) -- (0.1,-pi/2);
draw (-0.1, -pi/4) -- (0.1,-pi/4);
draw (-0.1, pi/4) -- (0.1,pi/4);
draw (-0.1, pi/2) -- (0.1,pi/2);

node at (-0.1, -pi/2) [left] tiny $-pi/2$;
node at (-0.1, -pi/4) [left] tiny $-pi/4$;
node at (-0.1, pi/4) [left] tiny $pi/4$;
node at (-0.1, pi/2) [left] tiny $pi/2$;

draw [scale=0.5,domain=0:5,variable=x] plot (x,atan(x r));

endtikzpicture

tikz-pgf

share

asked 8 mins ago

user185895user185895

1

New contributor

user185895 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Enclose atan(x r) in braces: plot (x,atan(x r));
  
  – Phelype Oleinik
  5 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of Draw a Line Between Two Points described by Trigonometric Calculations
  
  – Phelype Oleinik
  4 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Try draw[blue] plot[domain=0:5,variable=x,samples=71] (x,atan(x r)*pi/180);, i.e. scale the plot to radians.
  
  – marmot
  1 min ago
  

  
  
  
  

add a comment | 

0

I am trying to plot the atan() function, but it keeps giving me an error. This is my code. What in the world am I doing wrong? Why doesn't it plot on the graph I made. Also I cannot use pgfplots.

begintikzpicture
draw [help lines] (-5,-pi) grid (5,pi);
draw [->,thick] (-5,0) -- (0,0) -- (5,0) node [below] small $x$;
draw [->,thick] (0,-pi) -- (0,pi) node [left] small $y$;
foreach x in -5,-4,...,5 draw (x, -0.1) -- (x,0.1);
foreach x in -5,-4,...,-1 node at (x, -0.1) [below] tiny $x$;
foreach x in 1,2,...,5 node at (x, -0.1) [below] tiny $x$;

draw (-0.1, -pi/2) -- (0.1,-pi/2);
draw (-0.1, -pi/4) -- (0.1,-pi/4);
draw (-0.1, pi/4) -- (0.1,pi/4);
draw (-0.1, pi/2) -- (0.1,pi/2);

node at (-0.1, -pi/2) [left] tiny $-pi/2$;
node at (-0.1, -pi/4) [left] tiny $-pi/4$;
node at (-0.1, pi/4) [left] tiny $pi/4$;
node at (-0.1, pi/2) [left] tiny $pi/2$;

draw [scale=0.5,domain=0:5,variable=x] plot (x,atan(x r));

endtikzpicture

tikz-pgf

share

asked 8 mins ago

user185895user185895

1

New contributor

user185895 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Enclose atan(x r) in braces: plot (x,atan(x r));
  
  – Phelype Oleinik
  5 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of Draw a Line Between Two Points described by Trigonometric Calculations
  
  – Phelype Oleinik
  4 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Try draw[blue] plot[domain=0:5,variable=x,samples=71] (x,atan(x r)*pi/180);, i.e. scale the plot to radians.
  
  – marmot
  1 min ago
  

  
  
  
  

add a comment | 

I am trying to plot the atan() function, but it keeps giving me an error. This is my code. What in the world am I doing wrong? Why doesn't it plot on the graph I made. Also I cannot use pgfplots.

begintikzpicture
draw [help lines] (-5,-pi) grid (5,pi);
draw [->,thick] (-5,0) -- (0,0) -- (5,0) node [below] small $x$;
draw [->,thick] (0,-pi) -- (0,pi) node [left] small $y$;
foreach x in -5,-4,...,5 draw (x, -0.1) -- (x,0.1);
foreach x in -5,-4,...,-1 node at (x, -0.1) [below] tiny $x$;
foreach x in 1,2,...,5 node at (x, -0.1) [below] tiny $x$;

draw (-0.1, -pi/2) -- (0.1,-pi/2);
draw (-0.1, -pi/4) -- (0.1,-pi/4);
draw (-0.1, pi/4) -- (0.1,pi/4);
draw (-0.1, pi/2) -- (0.1,pi/2);

node at (-0.1, -pi/2) [left] tiny $-pi/2$;
node at (-0.1, -pi/4) [left] tiny $-pi/4$;
node at (-0.1, pi/4) [left] tiny $pi/4$;
node at (-0.1, pi/2) [left] tiny $pi/2$;

draw [scale=0.5,domain=0:5,variable=x] plot (x,atan(x r));

endtikzpicture

tikz-pgf

share

asked 8 mins ago

user185895user185895

1

New contributor

user185895 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

begintikzpicture
draw [help lines] (-5,-pi) grid (5,pi);
draw [->,thick] (-5,0) -- (0,0) -- (5,0) node [below] small $x$;
draw [->,thick] (0,-pi) -- (0,pi) node [left] small $y$;
foreach x in -5,-4,...,5 draw (x, -0.1) -- (x,0.1);
foreach x in -5,-4,...,-1 node at (x, -0.1) [below] tiny $x$;
foreach x in 1,2,...,5 node at (x, -0.1) [below] tiny $x$;

draw (-0.1, -pi/2) -- (0.1,-pi/2);
draw (-0.1, -pi/4) -- (0.1,-pi/4);
draw (-0.1, pi/4) -- (0.1,pi/4);
draw (-0.1, pi/2) -- (0.1,pi/2);

node at (-0.1, -pi/2) [left] tiny $-pi/2$;
node at (-0.1, -pi/4) [left] tiny $-pi/4$;
node at (-0.1, pi/4) [left] tiny $pi/4$;
node at (-0.1, pi/2) [left] tiny $pi/2$;

draw [scale=0.5,domain=0:5,variable=x] plot (x,atan(x r));

endtikzpicture

share

asked 8 mins ago

user185895user185895

1

New contributor

user185895 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

asked 8 mins ago

user185895user185895

1

New contributor

user185895 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 8 mins ago

user185895user185895

1

New contributor

user185895 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 8 mins ago

user185895user185895

1