Example
y=Cos(t)
![Graph of Sin(2t):Cos(t)](/docs/_astro/img_12.BLpjdOCf_Z2w6JIl.webp)
CalcES supports draw parametric function with x and y parameters.
Example
Syntax:
x(t):y(t)
Tap the GRAPH
button to draw parametric graph
CALC
panel: calculate value a pointThe Calc
panel allow you to calculate the value of x(t):y(t)
with given t value.
Press Calc
button to open Calc
panel:
Tap the Edit icon to enter the value of t
After entering value of t , the panel displays some properties at t
:
x = ?y = ?dx/dt = ?dy/dt = ?dy/dx = ?
TABLE
panel: generate table of valuesThe Table panel allow you to generate a table of values.
Tap the Table button to open it:
Here is the table of values of Sin(2t):Cos(t) 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
Example, Start=0.5 and Step=0.25
Tap Save to recalculate the table:
t
rangeThe default range of t variable is from -10
to 10
, to change this value:
Open the settings screen:
Select the Graph tab
Scroll to the Parametric graph section:
Change the Parametric start and Parametric stop with your value, tap OK to save
Example
Example:
0
to π