## PI DAY CELEBRATION - presentation of "Symmetry in Graphs"

**Pi Day** **is a holiday celebrating the mathematical constant π (pi) on 14 March each year**, *and is also the International Day of Mathematics*.

*In the American date notation, 14 March is written as 3/14, which are the first three digits of pi. On this day, events are held all over the world, mostly competitions to memorise the decimals of a number. PIphilology covers various mnemonic techniques that can help us to know the maximum possible number of decimals of PI. One way is*

**PIpoetry**- i.e. poetry in which the number of letters in the n^{th}word of a composition must equal the n^{th}decimal in the decimal notation of Pi. PIphilology is a technique that can help us to know the maximum number of decimals of Pi. PIpoetry is a form of poetry in which the number of letters in the n^{th}word of a composition must equal the n^{th}decimal in the decimal notation of Pi. The first Slovenian competition in PIetry was organised at UP, in 2014, within the Department of Mathematics of UP Famnit and UP IAM.## The 32nd IASP World Congress under the Honorary Patronage of the President of the Republic of Slovenia

*We are honoured to announce that the 32nd IASP World Congress will be held under the honorary patronage of the President of the Republic of Slovenia Dr Nataša Pirc Musar.*