CalcES are fully supported function graph in Cartesian coordinates.
y=f(x)
Example: y=x^3-4x+1
Enter function x^3-4x+1
, and then press GRAPH
Entering
y=x^3-4x+1
stills valid
Tap the Graph button to draw graphs:
Using the Tracing option to view value graph at a point
Enable Root option, all roots will show
Enable Derivative option, a dash line represents the derivative of function will show
Enable Extrema option, all local/global maximum/minimum points will show
Enable Inflection option, all inflection points will show
See Wikipedia
See Wikipedia
Using Trace and Tangent options to show tangent line at a specific point
Entering more than 1 functions to show intersection points between them.
Using :
to enter multiple Cartesian functions:
y(x):g(x):h(x)
Example, enter Sin(x):Cos(x)
:
Press GRAPH
button to draw multiple graphs:
Enable Intersection option, all intersection points between the selected function and others will show
Other examples:
The Calc panel allow to you calculate with selected function.
Tab Calc to open CALC panel:
Properties of graph at x=0.21
x=2.1
y=0.863209367
dy/dx=-0.504846105
d^2y/d^2x=-0.863209367
First root of Sin(x) from -2 to -1
x=12.566370614
y=-0
Minimum value of Sin(x) from -2 to -1
xMin=-1.570796153
yMin=-1
Maximum value of Sin(x) from -2 to -1
xMax=-1.000000435
yMax=-0.84147122
For integral tab, the graph will display additional shading in given range. Integral of Sin(x) from -2 to 3.
=0.57384566
The Table panel allow you to generate a table of values. Tap the Table button to open it:
Here is the table of values of y=Sin(x) with Δt=1
, and start at 0
To change the Δt
or the Start value, tap the edit icon on the left of Δt
:
Tap the edit icon to change value of Start and Step:
Example, Start=0.5 and Step=0.25
Tap Save to recalculate the table of Sin(x):
Updated at Thu 21 Dec 2023