0-9

Enter numerals in the buffer

eex

Puts the calculator in exponential mode and enters an e in the buffer

point

Enters a decimal point in the buffer

pi, twoPi, sqrt2, charge, degPerRad, boltzmann, epp0

Enter the constant names in the buffer

clear

Clears the buffer

lastx

Recalls the contents of the lastx register to the buffer

clst

Clears the buffer and all the stack registers

up, dwn, xchxy

Perform the up, down, and x-exchange-y operations on the buffer and stack contents

enter

Places a copy of the current buffer expression in the stack

append (app on the keyboard)

Appends the first stack element to the contents of the buffer

multiply, divide, add, subtract

Perform the specified operation on the buffer and the first stack element

chs

Changes the sign of the buffer expression or exponent

power

Raises 10 to the power of the buffer expression

square

Squares the buffer expression

exp

Calculates e to the power of the buffer expression

abs

Calculates the absolute value of the buffer expression

int

Truncates the integer portion of the buffer expression

db10

Calculates the dB magnitude of the buffer contents for a power expression

db20

Calculates the dB magnitude of the buffer contents for a voltage or current expression

sqrt

Calculates the square root of the buffer expression

mag

Calculates the magnitude of an AC buffer expression

phase

Calculates the phase of an AC buffer expression

imag

Calculates the imaginary part of an AC buffer expression

real

Calculates the real part of an AC buffer expression

log10

Calculates the log10 of the buffer expression

ln

Calculates the loge of the buffer expression

ytox

Raises the contents of the first stack element to the power of the contents of the buffer

expression

Specifies the expression string to place in the buffer.

Provides an implicit enter for the current buffer expression.

t_expression

Specifies the expression string to place in the buffer

Argument used only with the expression keyword.