Agave Growth
Havard's agave (Agave havardiana). Santa Fe Botanical Garden, Santa Fe, New Mexico, 2024.Photos by I. Peterson
The Mathematical Tourist
Latest posts
Montana Ferns
Tizer Botanic Gardens & Arboretum, Jefferson City, Montana, 2024.Photo by I. Peterson
Cathedral Symmetries
Cathedral of St. Helena, Helena, Montana, 2024.Photos by I. Peterson
Capitol Arcs
State Capitol, Helena, Montana, 2024.Photos by I. Peterson
Stars of St. Vitus
St. Vitus Cathedral, Prague Castle, Prague, Czechia, 2024.Photos by I. Peterson
Leaf Decoration
Prague Castle, Prague, Czechia, 2024.Photos by I. Peterson
Film Special Effects Museum
Karel Zeman Museum, Prague, Czechia, 2024.Photos by I. Peterson
Charles Bridge Towers
Lesser Town Bridge Towers, Prague, Czechia, 2024.Photo by I. Peterson
Three Pentagons
Pentagon logo, Berliner Philharmoniker. Philharmonie entrance, Berlin, Germany, 2024.Photo by I. Peterson
Roman Soldier in Germany
Brandenburg Gate, Berlin, Germany, 2024.Photos by I. Peterson
Whale at the Brandenburg Gate
Interior of DZ Bank office building, designed by Frank Gehry. Pariser Platz 3, Berlin, Germany, 2024.Photos by I. PetersonSee also "Building Bulges" and "Standing Glass Fish."
Prague 1985
A Day in Prague: May 1, 1985Arrival: From Train Station to Old Town SquareAstronomical Clock, Old Town Square.Old Town Hall.Jan Hus Memorial, Old Town Square.From the Old Town Square to the Jewish Quarter to the Charles BridgeOld Jewish Cemetery.Oval garret windows.Nancy, with a view across the Vltava River toward Prague Castle.Ivars, a view of Prague Castle and St. Vitus Cathedral from the
Patterns in the Santa Fe Botanical Garden II
When we look at the world around us, we don't usually think about mathematics, or even notice math that may be right in front of our eyes. Yet an eye for math can greatly enrich our appreciation and understanding of what we see.The Santa Fe Botanical Garden is a wonderful place for exploration with mathematics in mind, from the bilateral symmetry of leaves to branching
Crittergami
Scamp by Kevin Box. The Collection, Chevy Chase, Maryland, 2023.Chirp by Kevin Box.Shelly by Kevin Box.Swish & Flip by Kevin Box.Inch by Kevin Box.See also "Inching Along," "Rising Crane," and "Boxed Turtle."Photos by I. Peterson
Frosted Bronze
St. Francis of Assisi by Betty Sabo. Cathedral Basilica of St. Francis of Assisi, Santa Fe, New Mexico, 2023.Homage to the Burro by Charles Southard. Burro Alley, Santa Fe, New Mexico, 2023.Bronze bison sculpture, Old Santa Fe Trail, Santa Fe, New Mexico.Photos by I. Peterson
Circles and Blocks
Railyard Park, Santa Fe, New Mexico, 2022.Photos by I. Peterson
Tangents
Crestview, Austin, Texas, 2023.Photo by I. Peterson
Winter Feeding
Santa Fe, New Mexico, 2023.Photos by I. Peterson
Ghost Ranch Cliffs
Ghost Ranch, Abiquiu, New Mexico, 2023.Photos by I. Peterson
Gerald's Tree
Gerald's Tree, Ghost Ranch, Abiquiu, New Mexico, 2023.Photos by I. Peterson
Kiva Priest
Kiva Priest by Robert Dale Tsosie. Sculpture Garden, Museum of Indian Arts & Culture, Santa Fe, New Mexico, 2023.Photo by I. Peterson
Navajo Spirits
Plant Yei, Protection Yei, Plant Yei by Fred Begay. Sculpture Garden, Museum of Indian Arts & Culture, Santa Fe, New Mexico, 2023.Photos by I. Peterson
2023
2023 = 17 x 17 x 7 (A008865).2023 is the sum of its digits times the square of the sum of the digits squared: (2 + 0 + 2 + 3 = 7)(2 x 2 + 0 x 0 + 2 x 2 + 3 X 3 = 17)(2 x 2 + 0 x 0 + 2 x 2 + 3 X 3 = 17) = 7 x 17 x 17 = 2023 (A257766).2023 is a number that cannot be written as the sum of 3 squares.2023 is a multiple of 7 whose sum of digits is equal to 7 (A063416).2023 is the smallest of
John Sims (1968-2022)
John Sims (1968-2022) was both a mathematician and an artist."The mathematical art that I seek to develop combines mathematical language and analysis with the expressiveness and creativity of the process to make expressive visual theorems," Sims once commented.John Sims (1968-2022).In SquareRoot of a Tree, Sims used images of a real tree and a branched fractal structure to show the tree-root
Garden Sunset
Santa Fe Botanical Garden, Santa Fe, New Mexico, 2022.Photo by I. Peterson