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LL1 grammar analysis. Yet another top-down parser generator.
The calculator checks LL1 grammar correctness, parses a text using the grammar, shows FIRST, FOLLOW and FIRST PLUS sets, parsing tree and gives PLANETCALC parsing code.
Text compression using Huffman coding
This online calculator compresses entered text using Huffman coding. It also displays built Huffman codes for the reference.
Random matrix generator
This online calculator generates a random matrix with specified parameters like a dimension, a range of values, a type of numbers
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