Questions regarding the plotting or graphing of functions. Questions about graphs with vertices and edges should use the (graph-theory) tag instead. (STUB)
0
votes
1answer
16 views
MATLAB Plot vertical line
I have a system of equations, about 3 equations, that I need to plot that are dependent on 2 variables, R and z. But one of the equations is R={constant value}. ...
0
votes
3answers
71 views
the x-axis is between 0 and L
I have a function such as $f (x) = 1 + {x \over L}$ and I would like to graph this function, for $x$ between $0$ and $L$.
0
votes
1answer
24 views
Logistic Equation: Equilibrium
Given a differential equation, for example, a logistic curve, how do I determine the equilibrium points, graphically?
Consider $$x'=ax\left(1-\frac{x}{b}\right)-\frac{x^2}{1+x^2}$$
It is clear that ...
-1
votes
0answers
20 views
software to determinate inflextion points and corresponding top and bottom [closed]
Hopefully someone can point me in the right direction. My background in mathematics is not very deep.
I've received a number of graph files in a QPC format (I can change the format to ...
0
votes
0answers
55 views
plot $(x,y)$ coordinates to a sphere
I have a planar mesh of hexagons (or any other shape) that I want to bend into the shape of a half-sphere. For this purpose I want to loop through each vertice in my mesh and find the proper z ...
1
vote
3answers
60 views
Plot function: $f(x,y)$
At first: sorry if I describe something wrong, I dont really know english mathematics.
I want to draw a linear map.
$f:\Bbb R^2 \rightarrow \Bbb R$
$\vec{x} \mapsto |\vec{a}-\vec{x}|$
...
0
votes
2answers
21 views
Is there a way to calculate the scale of the Y axis without values on the Y axis
given the following bar graph (which shows monthly revenue, but no actual values), is there a way to calculate the revenue (actual dollar amount) in 3/2013?
3
votes
4answers
64 views
How to find the angle between two straight line equations?
The Problem
There are two straight lines with equations as follow
y=-2x+10 and y=-3x+6
their point of intersection is (2,6) and i am asked to find the angle between them ?
A detailed and easy ...
0
votes
1answer
39 views
Normalizing graphs?
I have a statistical line graph for a website which is all automated, but it does not look very nice. What can I do with the data (massage it, etc) to make it look better and easier to read? The graph ...
1
vote
1answer
25 views
Visualising a graph from $\mathbb{R^3}$ to $\mathbb{R}$
Given a function, any function, exempli gratia, $$f(x,y,z)=\frac{x^2y}{z}$$
It's range will be whole of $\mathbb{R}$(???). Plotting the graph does not make sense. How can I, if I can, visualise this ...
0
votes
1answer
15 views
Plotting a function $\phi: C \to R$ in $R^3$ by writing it in terms of $\phi: R \times R \to R$.
I have a complex polynomial $f(z)$ and I would like to plot a 3D graph that takes in $x$ and $y$ (as the real/imaginary parts) and outputs the modulus of the result. How can I write, for example ...
0
votes
3answers
70 views
How to draw graph of this function
Given f(x) is a function where its 2nd derivatives f''(x) as shown in the graph below.
...
0
votes
2answers
52 views
How to solve this graph problem in WolframAlpha?
I need to input this problem in WolframAlpha:
Write an equation of the line containing the given point and parallel to the given line: $(8,-8)$, $7x+8y=5$.
The answer is $7x+8y=-8$ but I'm not ...
2
votes
1answer
32 views
Model a function with specific shape
I need a function with a specific shape:
Quadratic/gaussian concave shape ($-x^2$ like)
Centered in $\frac{1}{2}$ where it reaches the max value 1
On 0 and ...
1
vote
0answers
33 views
Sketch the graphs of the following functions and show all asymptotes with a dotted line.
Guys so I was just working on a "practice assignment" and I was having trouble with this question.
Sketch the graphs of the following functions and show all asymptotes with a doted line
...
