Please type a positive integer number to the field below and press " => " or simply
"enter". You will see its Mayan representation either graphically or in a typewriter
On the other side you can transform a Mayan number (typed on the right text area) back into an Arabic number: just press the button " <= ". The transformation is too tolerant and accept sometimes incorrect Mayan numbers - then the result, which is a polite guess, can be misleading.
Pressing the " + 1 " or " - 1 " button you can increase or decrease the number by one.