E

e

 

e

Returns decimal approximation of the constant e.

y [e]

e^(

 

e^(power)

Returns e raised to power.

y J

e^(

 

e^(list)

Returns a list of e raised to a list of powers.

y J

â

 

Exponent:
valueâexponent

Returns value times 10 to the exponent.

y D

â

 

Exponent:
listâexponent

Returns list elements times 10 to the exponent.

y D

â

 

Exponent:
matrixâexponent

Returns matrix elements times 10 to the exponent.

y D

4Eff(

 

4Eff(nominal rate,
compounding periods)

Computes the effective interest rate.

Π1:Finance
 CALC
 C: 4 Eff(

Else

 

Else

See If:Then:Else

 

End

 

End

Identifies end of For(, If‑Then‑Else, Repeat, or While loop.

† ¼
CTL
 7:End

Eng

 

Eng

Sets engineering display mode.

† z
 Eng

Equ4String(

 

Equ4String(Y= var,Strn)

Converts the contents of a Y= var to a string and stores it in Strn

y N
Equ 4 String(

eval(

 

eval(expression)

Returns an evaluated expression as a string with 8 significant digits. The expression must simplify to a real expression.

† ¼
I/O
C:eval(

eval(

TI-Innovator™ Hub

eval(expression)

Returns an evaluated expression as a string with 8 significant digits. The expression must simplify to a real expression.

† ¼
HUB
6:eval(

expr(

 

expr(string)

Converts the character string contained in string to an expression and executes the expression. string can be a string or a string variable.

† ¼
I/O
expr(

ExecLib

 

ExecLib

Extends TI-Basic (not available)

† ¼
CTL
K:ExecLib

ExpReg

 

ExpReg [Xlistname,Ylistname,freqlist,regequ]

Fits an exponential regression model to Xlistname and Ylistname with frequency freqlist, and stores the regression equation to regequ.

…
CALC
 0:ExpReg

ExprOff

 

ExprOff

Turns off the expression display during TRACE.

† y .
 ExprOff

ExprOn

 

ExprOn

Turns on the expression display during TRACE.

† y .
ExprOn