right()
Catalog >
Returns the rightmost
Num
elements
contained in
List1
.
If you omit
Num
, returns all of
List1
.
right(
sourceString
[
,
Num
]
)
⇒
string
Returns the rightmost
Num
characters
contained in character string
sourceString
.
If you omit
Num
, returns all of
sourceString
.
right(
Comparison
)
⇒
expression
Returns the right side of an equation or
inequality.
rk23 ()
Catalog >
rk23(
Expr
,
Var
,
depVar
, {
Var0
,
VarMax
},
depVar0
,
VarStep
[
,
diftol
]
)
⇒
matrix
rk23(
SystemOfExpr
,
Var
,
ListOfDepVars
,
{
Var0
,
VarMax
}
,
ListOfDepVars0
,
VarStep
[
,
diftol
]
)
⇒
matrix
rk23(
ListOfExpr
,
Var
,
ListOfDepVars
,
{
Var0
,
VarMax
}
,
ListOfDepVars0
,
VarStep
[
,
diftol
]
)
⇒
matrix
Uses the Runge-Kutta method to solve the
system
with
depVar
(
Var0
)=
depVar0
on the
interval [
Var0
,
VarMax
]. Returns a matrix
whose first row defines the
Var
output
values as defined by
VarStep
. The second
row defines the value of the first solution
component at the corresponding
Var
values, and so on.
Expr
is the right hand side that defines the
ordinary differential equation (ODE).
SystemOfExpr
is a system of right-hand
sides that define the system of ODEs
(corresponds to order of dependent
variables in
ListOfDepVars
).
Differential equation:
y'=0.001*y*(100-y) and y(0)=10
To see the entire result, press
£
and then
use
¡
and
¢
to move the cursor.
Same equation with
diftol
set to 1.
E
−
6
Compare above result with CAS exact
solution obtained using deSolve() and
seqGen():
System of equations:
Alphabetical Listing
149
Содержание TI-Nspire CAS
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