Pali vs Calccis

“Madam, I'm Adam." "Able was I ere I saw Elba." A palindrome is a sentence that is the same whether it is read from the front or the back. Thinking up palindromes on your own is a fun but quite difficult mental exercise. With this application, you will be able to efficiently experiment with different types of palindromes. If you find a palindrome you like, save it as a favorite or share it with your friends. // Main functions // - When a character is entered in either the upper or lower frame, it will appear in the opposite frame in reverse order to create a palindrome. - The contents of the upper and lower frames can be swapped at the touch of a button, and whether or not the last character in the upper frame is repeated can be toggled. - You can also copy palindromes to the clipboard and save them to your favorites. - Saved palindromes are listed and can be deleted, reordered, or recalled. - You can also share your palindromes on Twitter.

Calccis is a reverse polish notation (RPN) calculator. It supports basic arithmetic, trigonometrical, logarithm and exponent calculations for real, fractional, and complex numbers. Degrees and radians can be used for trigonometrical functions. You can perform matrix calculations, too. There is an undo stack, which supports undoing and redoing the 100 latest operations. Calccis does not copy or mimic any existing physical calculators. However, the operation of the stack has been influenced by how the stack works in the 1990s Hewlett-Packard HP-48 family of calculators.