CALC 1 Basic SR Calculator

label

hint

1/x

Calculates the reciprocal.

√

Calculates the square root.

ln

Calculates the natural logarithm.

log

Calculates the common logarithm.

^

The exponentiation operator. (CHN, ALG)

y^x

Raises y to the power of x. (RPN)

x!

Calculates the factorial of x.

x²

Calculates x squared.

3√

Calculates the cube root of x.

e^x

Calculates e^x where e is Euler's constant (2.718…), the base of the natural logarithm.

10^x

Calculates 10^x where 10 is the base of the common logarithm.

π

Enters PI.

sin

Calculates the sine of x in the current DEG/RAD mode.

cos

Calculates the cosine of x in the current DEG/RAD mode.

tan

Calculates the tangent of x in the current DEG/RAD mode.

→P

Converts x and y from rectangular to polar values for the current DEG/RAD mode. (see rectangular to polar keys)

A(D)

Calculates the area of a circle given the diameter.

asin

Calculates the arcsine of x in the current DEG/RAD mode.

acos

Calculates the cosine of x in the current DEG/RAD mode.

atan

Calculates the tangent of x in the current DEG/RAD mode.

→R

Converts x and y from polar to rectangular values for the current DEG/RAD mode. (see rectangular to polar keys)

Δ%

Calculates the percent change from y to x. (see Percent Keys)

x²

Calculates x squared.

x√y

Calculates the xth root of y.

3√

Calculates the cube root of x.

EE

Starts the entry of an exponent.

K

Stores operator and right hand value for repeated operations. (CHN)

K

Locks / unlocks the current expression to allow repeated calculations with different values. (ALG)

(

Left parenthesis.

)

Right parenthesis

%T

Calculates what percentage x is of y. . (see Percent Keys)

rand

Returns a pseudo-random number between 0 and 1.

d/r

Toggles between the DEG and RAD mode.

→DEG

Converts x from radians to degrees.

→RAD

Converts x from degrees to radians.

+/-

Changes the sign.

←

Deletes last number or clears x if number is entered.

%

Percentage 

rgx

Appends rgx (the current value of rgx ) into the expression.

ROLL

Rolls the stack down.

SWAP

Swaps the x and y  stack registers.

RND

Rounds x to the current number formatting settings.

ENTER

Enters the current value and lifts the stack.

rgy

Appends rgy (the current value of rgy ) into the expression.

C Stk

Clears the stack.

7

appends 7.

8

appends 8.

9

appends 9.

/

division; y ÷ x

shift

Set the shift state.

*

Cancels the shift state.

STO /

Divides the selected memory location by x.

*

Cancels the shift state.

RCL /

Divides x by the selected memory location.

*

Cancels the shift state.

4

appends 4.

5

appends 5.

6

appends 6.

*

multiplication; y × x

STO

Sets the STORE shift state.

usd-eur

Converts x from US Dollars to Euros.

→H.fp

Converts x from H.MMSS to fractional hours.

°F-°C

Converts x from Fahrenheit to Celsius

in-mm

Converts x from inches to millimeters

fl oz-ml

Converts x from ounces (U.S. Fluid customary, 1/128 gal) to milliliters

STO *

Multiplies the selected memory location by x.

RCL *

Multiplies x by the selected memory location.

1

appends 1.

2

appends 2.

3

appends 3.

RCL

Sets the RECALL shift state.

-

subtraction; y − x

eur-usd

Converts x from Euros to US Dollars.

→HMS

Converts x from fractional hours to H.MMSS.

°C-°F

Converts x from Celsius to Fahrenheit

mm-in

Converts x from millimeters to inches

ml-fl oz

Converts x from milliliters to ounces (U.S. Fluid customary, 1/128 gal)

STO -

Subtracts x from the selected memory location.

RCL -

Subtracts the selected memory location from x.

0

appends 0.

+

addition; y + x

C

Clears the current value.

.

appends decimal

=

Evaluates the current expression. (CHN, ALG)

ENTER

Enters the current value and lifts the stack. (RPN)

fix(x)

Sets the number format to fixed, x decimal places.

sd(x)

Sets the number format to x significant digits.

frc(/x)

Sets the number format to fractional /x max denominator.

sd(0,12)

Sets the number format to 0-12 (all) significant digits.

STO+Redo

Performs an REDO of the specified operation.

STO +

Adds x to the selected memory location.

RCL+Undo

Performs an UNDO of the specified operation.

RCL +

Adds the selected memory location to x.

last x

Recalls the last value of register x.