Introduction to FX Graph 5
Getting Started

Click on the y= button (or right click on the graph) to enter a
function
Each Line is a Function

The function entry section of the Quick Entry screen allows for
multiple lines. Each line will be graphed as a separate function.
Points Of Interest

FX Graph finds points of interest automatically. As you move the
mouse around, FX Graph will show you any points of interest near
the cursor.
Right Click Menus 1

Many features are accessed by right-clicking on the graphs
A. Right-clicking at point A will open the
Quick Entry screen - the one we
have been using to enter our
functions.
B. Right-clicking at point B will open the
Scales screen which will allow you
to set the scales you use for the
function.
C. Right-clicking at point C will offer a
right click menu (providing FX Graph
has found the function and displayed
it for you).
Right Click Menus 2
Setting Axes
Annotations 1
Annotations 2
Cartesian / Inverse
Cartesian Functions

FX Graph never needs to be "told" what type of graph to
draw - it automatically determines the graph type by
what you type. To draw a Cartesian function, just use x's
– to draw Inverse Cartesian functions, use y’s.
3x2 + 2x - 4
y = 3x2 + 2x - 4
f(x) = 3x2 + 2x - 4
3x2 + 2x - 4 - y = 0
3y - 4/y
x = 2y2 + 3y - 4
f(y) = 3y + 4
Using the Function Entry
System 1





The function has no y = but FX Graph will
interpret it as a Cartesian function anyway.
We have not had to do anything to get FX
Graph to interpret x2 as x squared. Most of
the time, FX Graph will find powers
automatically.
We have used the / sign to represent division.
We have wrapped the numerator and
denominator of the fraction in brackets - not
too tricky as most mathematicians realize that
the fraction line is a de-facto bracket.
We have used sqrt to represent square roots.
We could have used sr instead.
Using the Function Entry
System 2
Points 1
Points 2
Vectors
Polar Functions 1

We use th to represent θ
Polar Functions 2
Inequations and Feasible
Regions 1
Inequations and Feasible
Regions 2
Inequations and Feasible
Regions 3
Complex Numbers &
Argand Diagrams 1
Complex Numbers &
Argand Diagrams 2
FX Graph can
undertake some
complex calculations,
Complex Numbers &
Argand Diagrams 3
…solve complex
powers…
Complex Numbers &
Argand Diagrams 4
and graph some
graphs of the
magnitude of z
Parametric Functions
Note use of semicolon
Implicitly Defined
Functions
Slope Fields
Differential Equations
Tangent / Secant Lines

You can add tangent and secant lines to Cartesian
functions
Integrals

You can add integrals to Cartesian functions
Tables of Values

Tables of Values can be added to most functions
Setting Domains 1
Setting Domains 2
Setting Domains 3
The second
style is slower,
but more
versatile.
Plot As Points
Constants 1

FX Graph 4 interprets a, b, c, d and m as constants in
your functions
Constants 2
Constants can be
used just about
everywhere!
Families of Curves

x2 +a/x
Animations
Email Tutorials


Efofex provides comprehensive training for FX Graph 4
available as convenient email tutorials. Register at
www.efofex.com/emailtutes.php. The system will send
an email a day for a few weeks.
Email tutorials are available for all Efofex products.