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# Test yourself now

High marks in science are the key to your success and future plans. Test yourself and learn more on Siyavula Practice.

Pi ($$\pi$$) is an irrational number. Expressed as a decimal number, it has an infinite number of decimals and no repeating pattern. Can you guess how many digits have been calculated for the value of $$\pi$$? In $$2021$$, a supercomputer calculated $$\pi$$ to $$\text{62,8}$$ trillion decimal places!