Articles Tagged with mathematics

Sunrise, sunset

Published on January 27, 2026January 26, 2026 by fivecolorssandt@icloud.com

In-between calculations

In the twilight land of Spherical Astronomy. . .

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Analog lessons

Published on September 2, 2025September 1, 2025 by fivecolorssandt@icloud.com

Doomed ideas (III)

A different sort of lesson for this digital age.

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Teaching creativity

Published on July 15, 2025July 14, 2025 by fivecolorssandt@icloud.com

Or not

Sometimes following a procedure is necessary; other times, it’s not an option.

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Interpolation

Published on May 27, 2025May 26, 2025 by fivecolorssandt@icloud.com

No longer useful

We don’t need to look up things in tables of numbers nowadays.

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Handwriting

Published on February 4, 2025February 2, 2025 by fivecolorssandt@icloud.com

Legibility

The old-fashioned art still has some use.

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Unstated assumptions

Published on December 24, 2024December 22, 2024 by fivecolorssandt@icloud.com

Conditional probability

The assumptions you make without noticing can change the answers you get.

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A philosophical essay

Published on December 17, 2024December 16, 2024 by fivecolorssandt@icloud.com

Many topics

A mathematical essay turns out to have much more than mathematics in it.

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But first-

Published on November 12, 2024November 10, 2024 by fivecolorssandt@icloud.com

The two-step problem

We identify a major block to productivity.

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A changing syllabus

Published on November 5, 2024November 4, 2024 by fivecolorssandt@icloud.com

What to learn

“Quantum Mechanics” is not what it used to be.

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Attention to detail

Published on October 22, 2024October 18, 2024 by fivecolorssandt@icloud.com

Small mistakes

We compare old and new examples of unforgiving calculations.

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