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Mathematician Cleve Moler, LINPACK Co-Creator, Dies at 86

6/12/2026

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Summary

Story summary

Cleve Moler, a U.S. mathematician, died on May 20 at his home in Saint Michaels, Md., at age 86.
His daughter Kathryn Moler said Parkinson’s disease caused his death.
In the 1970s Moler co-developed the FORTRAN libraries EISPACK and LINPACK, which let engineers and biomedical researchers run large calculations without writing low-level code.
These libraries opened computing power to finance, automobile design and medical imaging.

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Story summary

Cleve Moler, a U.S. mathematician, died on May 20 at his home in Saint Michaels, Md., at age 86.
His daughter Kathryn Moler said Parkinson’s disease caused his death.
In the 1970s Moler co-developed the FORTRAN libraries EISPACK and LINPACK, which let engineers and biomedical researchers run large calculations without writing low-level code.
These libraries opened computing power to finance, automobile design and medical imaging.