CalcES supports draw parametric function with x
and y
parameters.
For example:
x = Sin(2t)
y = Cos(t)
Syntax:
x(t):y(t)
t
variable, press ALPHA
Ln
:
symbol, press ALPHA
∫dx
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, 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:
Example:
x=sin(2t)+3sin(t)
y=2sin(3t)
t
from 0
to Pi
t
from -Pi
to Pi