dc

dc is a desk calculator that supports unlimited-precision arithmetic and postfix notation.

dc
2
3
+
p
5
*short* example of command usage and output

Note

Because it is postfix notation, the operations come AFTER the numbers

Example

You can add complexity to it using multiple operators

$dc
100
0.5
6.34
+
*
-
p
-684.00

Useful Options

Printing Commands

‘p’

Prints the value on the top of the stack

$dc
4
4
+
p
8

‘n’

Prints the value on the top of the stack and pops it off

$dc
10
10
+
n
20    
p
dc: stack empty

‘P’

Pops off the value on top of the stack

$dc
10
10
+
P
p
dc: stack empty

‘f’

Prints the content of the stack without changing anything

$dc
10
10
+
f
20

Stack Control

‘c’

Clears the stack

$dc
10
10
10
c
p
dc: stack empty

‘d’

Duplicates the top value of the stack and pushes another copy of it

$dc
10
d
f
10
10

‘r’

Reverse the order of the top two values of the stack

$dc
1
2
3
4
r
f
3
4
2
1

‘q’

Exits out

$dc
10
20
+
q