Richard Delamaine
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Richard Delamaine or Delamain, known as the elder (bef. 1629 – bef. 1645), was an English mathematician, known for works on the circular slide rule and sundials.
Richard Delamaine or Delamain, known as the elder (bef. 1629 – bef. 1645), was an English mathematician, known for works on the circular slide rule and sundials.