Martin Gardner was one of my earliest influences. I started reading his mathematical games column in Scientific American from 1978 to 1981 when I was in grade school and had just recieved my first TRS-80 COCO 8-bit computer. His 1990 book "The New Ambidextrous Universe: Symmetry and Asymmetry from Mirror Reflections to Superstrings" was the catalyst of many experimental software explorations in mathematics on my Amiga.
I am extremely gratefull for all of your work. I was caught off guard last week when I found out you had passed on.
You will be missed.