Home | Download | Buy Now | Support

° ' ''

DMS (degrees, minutes, seconds) conversion key.

^

Raise to any power. This function accepts two values.

To calculate 5^3, enter:

5 [^] 3
[ENTER]
Displays: 125

Complex numbers may be used or returned. For example:

-27 [^] 0.7
[ENTER]
Displays: -5.9043666729509497 + 8.12666354048222156i

See also: ⁿ√x.

+/(-)

In prefix algebraic mode, this key primarily acts as a (-) minus sign. In postfix modes, it is a sign toggle and can be pressed to reverse the sign of the display value.

To enter -5, you would press:

[+/(-)] 5
[ENTER]
Displays: -5

+

Addition operator.

-

Subtraction operator.

×

Multiplication operator.

÷

Division operator.

10^x

Raise 10 to the power of x. This is the reverse of the log function.

a b/c

Natural fraction conversion key. When you press the [a b/c] key, the result of a previous calculation will be shown as a natural (or common) fraction. The natural fraction form will also be shown if you input a decimal point.

Example: Show Π as a fraction.

[CONST] Π [a b/c]
Displays: 3 + 16/113 (aprx)

The 'aprx' indication signifies that the fraction cannot be represented precisely, and it is thus an approximate conversion. You can modify the precision of fraction conversions by changing the 'Max Denominator' setting in the Options Window.

The [a b/c] key may also be used to input values in common fraction form. Pressing it again will show the result of the reduction.

Example: Reduce 1 + 8/6.

1 [a b/c] 8 [a b/c] 6 (input fraction)
[ENTER] (convert to decimal*)
Displays: 2.333333...

[a b/c] (press again to convert decimal)
Displays: 2 + 1/3

*It was not was not strictly necessary to press [ENTER] here, but it demonstrates the conversion to decimal.

See also [d/c].

conj

Complex conjugate. This function operates in a postfix manner and returns the conjugate of a complex value.

For example:

5 [;] 6
[ENTER]
Displays: 5 + 6i
[conj]
Displays: 5 - 6i

It does nothing in base-N modes or if the use of complex numbers is disabled.

d/c

Improper fraction key. Shows the current value as an improper fraction.

ENG

Engineering key. The [ENG] key provides a convenient way to view values in engineering form, without having to enable the dedicated engineering mode. Simply press [ENG] any time.

Example:

564000000
[ENG]
Displays: 564E6 (Mega)

Press [ENG] multiple times to decrement the exponent by 3, or use with [SHIFT] to increment by 3.

exp (e^x)

Raise the natural number e to the power of x. This is the reverse of ln.

imag

Imaginary part. It operates in a postfix manner and returns the imaginary component of a complex value.

For example:

5 [;] 6
[ENTER]
Displays: 5 + 6i
[imag]
Displays: 6

It does nothing in base-N modes or if use of complex numbers is disabled.

See also: real.

ln

Calculate the natural logarithm of the input value. This function is the reverse of e^x.

log

Calculate the base 10 logarithm of the input value. This function is the reverse of 10^x.

logB

Calculates the logarithm in any base. This function accepts two inputs in the form:

base [logB] value

For example, to calculate the base 3 logarithm of 129, key in:

3 [logB] 27
[ENTER]
Displays: 4.42359188449767959

ⁿ√x

Calculate the nth root of x, where n is always entered first.

For example, to calculate the 3rd root of 9, enter:

3 [n√x] 9
[ENTER]
Displays: 2.08008382305190411

This is equivalent to the following input, which may be preferred by some users:

9 [^] 3 [x-¹]
[ENTER]
Displays: 2.08008382305190411

See also: ^.

POLY

Initiates the calculator's Polynomial Solver.

real

Real part. Returns the real component of a complex value.

For example:

5 [;] 6
[ENTER]
Displays: 5 + 6i
[real]
Displays: 5

It does nothing in base-N modes or if use of complex numbers is disabled.

See also: imag.

√

Calculate the square root.

x!

Calculate the factorial of x, where x is a positive integer.

Example:

5 [x!]
Displays: 120

x^-1

Return the inverse of x, or 1 divided by the display value.

Example:

3 [x-¹]
Displays: 0.33333333333333333

x²

Calculate x squared—the result when the display value is multiplied by itself.