One of the mysteries of the English language finally explained.
- ‘The necessary background mathematical tools are then introduced such as the arithmetical operations on sexagesimal fractions and the trigonometric functions.’
- ‘In this Thabit deals with arithmetical operations applied to ratios of geometrical quantities.’
- ‘Mahler regretted that, apart from his own work, little interest had been shown by 20th century mathematicians in the study of arithmetical properties of decimal expansions.’
- ‘Babylonian mathematics went far beyond arithmetical calculations.’
- ‘He has two types of algebra, arithmetical algebra and symbolic algebra.’
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