here is that mysterious “?“-error again (the word “technology” after the headline):

https://www.cut-the-knot.org/Mset99/technology.shtml

and here something is wrong with the line pitch:

https://www.cut-the-knot.org/arithmetic/anEquation.shtml#solution

Kind regards

Chris

P.S. Many thanks for mentioning my logarithm example!

I fixed the problem in the Mset99 directory, but what is the line pitch in the other one. In my browsers the linked part appears OK.

the ¡°?¡° - error in the headline:

https://www.cut-the-knot.org/fta/Buffon/buffon9.shtml

In the middle of the page

https://www.cut-the-knot.org/arithmetic/Means.shtml

there is a link to the famous L¡¯Hospital rule. I¡¯ve tried to open this page several times,
but I always get the message: "Server Error. Operation timed out". Maybe the
link is broken.

Here is a small typo:

https://www.cut-the-knot.org/pythagoras/cos15.shtml

In the second line after ¡°Letting CD =x¡­¡° a bracket is wrong.

Here

https://www.cut-the-knot.org/arithmetic/algebra/ComplexNumberIdentities.shtml

the line after ¡°for any real t and s¡­¡± must begin with

Re(z-w)=¡­ and not with ¡°Re(z-s)¡±=¡­

In the second line of the page

https://www.cut-the-knot.org/blue/InterestingStory.shtml

I found:
¡°sadly short-lived) protñ� Srinivasar Ramanujan¡± .

Kind regards

Chris

Thank you.

in the expressions (Vector fields on Spheres)
https://www.cut-the-knot.org/do_you_know/CliffordAlgebras.shtml

(z1, z2,…

and

i(a+bi…

the brackets are wrong.

The “?”-error again. On the whole page…

https://www.cut-the-knot.org/fta/ROS2.shtml.

In the line after “Substituting ai=…”

https://www.cut-the-knot.org/Generalization/means.shtml

a bracket is wrong on the left side (((…)))).

Kind regards

Chris