Mathematician who wrote "Introduction to Analysis of the Infinite" Crossword Clue
Looking for the answer to “Mathematician who wrote "Introduction to Analysis of the Infinite"” from the Washington Post Sunday crossword of September 27, 2026? It has 5 letters. Flip the tiles one at a time, try a hint first, or look through the rest of that puzzle.
Crossword answer
WASHINGTON POST SUNDAY, SEPTEMBER 27, 2026
Tap a tile to see one letter, or show the whole answer.
EULER is the answer to “Mathematician who wrote "Introduction to Analysis of the Infinite"”.
Hints
Three clues to the answer, gentle first. Open one at a time.
Hint 1 Meaning
A 5-letter answer that starts with E.
Hint 2 Anagram
Its letters, scrambled: URLEE.
Hint 3 Another clue
It has also been clued as “Polymath Leonhard”.
More clues from the Washington Post Sunday (September 27, 2026)
Across
- 1. Cover by the door3 letters, starts with MMAT
- 4. Offer a harsh critique4 letters, starts with SSLAM
- 8. Constellation from the Latin for "huge serpent"5 letters, starts with DDRACO
- 13. Ye olde festival5 letters, starts with FFAIRE
- 18. Health reform legislation enacted in 2010, familiarly9 letters, starts with OOBAMACARE
- 21. Mathematician who wrote "Introduction to Analysis of the Infinite"5 letters, starts with EEULER
- 22. Pale-faced5 letters, starts with AASHEN
- 23. Revamps9 letters, starts with MMAKESOVER
- 24. Company that once ran a "What's Your Healthy?" marketing campaign5 letters, starts with AAETNA
- 25. Smallest possible5 letters, starts with LLEAST
- 26. Under a spell, say9 letters, starts with EENTRANCED
- 28. What people might need to take things to the next level?9 letters, starts with EESCALATOR
- 30. Up words?6 letters, starts with MMYTURN
- 32. Is 55 Across4 letters, starts with AAILS
- 33. Thing of the past5 letters, starts with RRELIC
- 34. Goree of "Riverdale"3 letters, starts with EELI
- 35. "That's so neat!"3 letters, starts with OOOH
- 36. *Of a complex named for a mythological figure3 letters, starts with OOED
- 38. *Knight of the Round Table described as the "First made and latest left of all the knights" in Tennyson's "Idylls of the King"3 letters, starts with BBED
- 40. Tending to damage soil7 letters, starts with EEROSIVE
- 42. Extractions from veins4 letters, starts with OORES
- 44. "You ___ what?!"3 letters, starts with DDID
- 46. One of two in a two-dimensional coordinate plane4 letters, starts with AAXIS
- 48. Schedules6 letters, starts with SSLATES
- 49. Chase away5 letters, starts with RREPEL
- 51. Sidekick3 letters, starts with PPAL
- 53. The Y of YSL4 letters, starts with YYVES
- 55. In need of sick leave3 letters, starts with IILL
- 56. Island chain3 letters, starts with LLEI
- 57. Charles ___ (king crowned in 2023)3 letters, starts with IIII
- 59. Poetic "prior to"3 letters, starts with EERE
- 60. Boards6 letters, starts with GGETSON
- 64. Wreck irrevocably4 letters, starts with RRUIN
- 65. *Publicity specialists5 letters, starts with PPRESS
- 67. Mel associated with Bugs5 letters, starts with BBLANC
- 69. Ceremonial "yes"3 letters, starts with IIDO
- 70. California setting of John Steinbeck's novel "Cannery Row"8 letters, starts with MMONTEREY
- 72. Goat meal3 letters, starts with HHAY
- 74. Pinned on, say8 letters, starts with FFASTENED
- 76. Benji or a basenji, e.g.3 letters, starts with DDOG
- 77. Tailoring joints5 letters, starts with SSEAMS
- 79. Gracious guys5 letters, starts with GGENTS
- 81. Categories4 letters, starts with IILKS
- 82. Quick typers, briefly6 letters, starts with SSTENOS
- 84. *1980s Soviet leader Yuri3 letters, starts with AAND
- 86. Round peg?3 letters, starts with TTEE
- 87. Mel associated with bats3 letters, starts with OOTT
- 88. Fore's counterpart3 letters, starts with AAFT
- 89. "The Magdalene Sisters" actress ___-Jane Noone4 letters, starts with NNORA
- 91. *Region on the north and south sides of the Greater Caucasus Mountains3 letters, starts with OOSS
- 93. Secluded spots5 letters, starts with NNOOKS
- 96. Sneaker patterns6 letters, starts with TTREADS
- 99. Opening of a soliloquy4 letters, starts with TTOBE
- 101. Nickname akin to Theo3 letters, starts with TTED
- 103. Space for a digital file?4 letters, starts with NNAIL
- 104. NBA team affiliated with the Greensboro Swarm7 letters, starts with HHORNETS
- 106. Perspective, initially3 letters, starts with PPOV
- 107. Woman at una reunión familiar3 letters, starts with TTIA
- 109. Counterintel org.3 letters, starts with NNSA
- 110. H in Heraklion3 letters, starts with EETA
- 111. Certain TV serials5 letters, starts with SSOAPS
- 114. Bridal cover4 letters, starts with VVEIL
- 117. Div. for the Dodgers6 letters, starts with NNLWEST
- 119. Starting subscription tier, often9 letters, starts with BBASICPLAN
- 121. Field legally covering property9 letters, starts with EESTATELAW
- 123. Work in a music library?5 letters, starts with EETUDE
- 124. Walk loudly and angrily5 letters, starts with SSTOMP
- 126. Colors of the rainbow, maybe?9 letters, starts with PPRIDEFLAG
- 129. Existentialist Kierkegaard5 letters, starts with SSOREN
- 130. Sunlit lobbies5 letters, starts with AATRIA
- 131. Champin' at the bit9 letters, starts with RRARINTOGO
- 132. Puppy's goody5 letters, starts with TTREAT
- 133. Instrument heard in many Reena Esmail compositions5 letters, starts with SSITAR
- 134. Eerie harbinger, maybe4 letters, starts with OOMEN
- 135. Say 69 Across3 letters, starts with WWED
Down
- 1. Million ___ March (mid-May 2000 rally for gun-control advocates)3 letters, starts with MMOM
- 2. Public defender's org.3 letters, starts with AABA
- 3. Commit to something significant ... or what you must do when entering this puzzle's starred answers?13 letters, starts with TTAKETHEPLUNGE
- 4. Had disdain for7 letters, starts with SSCORNED
- 5. Hot liquid rock4 letters, starts with LLAVA
- 6. Center for centers5 letters, starts with AARENA
- 7. Thank you for the Nice evening?5 letters, starts with MMERCI
- 8. So hot8 letters, starts with DDEADSEXY
- 9. Feel badly about3 letters, starts with RRUE
- 10. Shorten, as shorts, say5 letters, starts with AALTER
- 11. Burn perfume, as at church5 letters, starts with CCENSE
- 12. One with predictive power, supposedly6 letters, starts with OORACLE
- 13. Fashion designer's autumnal clothing set ... or what's in this puzzle's starred answers?14 letters, starts with FFALLCOLLECTION
- 14. Out on the open waters4 letters, starts with AASEA
- 15. "This is the worst!"7 letters, starts with IIHATEIT
- 16. Steely determination7 letters, starts with RRESOLVE
- 17. Diary units7 letters, starts with EENTRIES
- 19. List of potential orders4 letters, starts with MMENU
- 20. Animated pet living at the Skypad Apartments5 letters, starts with AASTRO
- 27. Island in the "Able was I ..." palindrome4 letters, starts with EELBA
- 29. Elemental group that includes Gemini, Libra and Aquarius8 letters, starts with AAIRSIGNS
- 30. Marshy area in "Wuthering Heights"4 letters, starts with MMOOR
- 31. Times long gone4 letters, starts with YYORE
- 37. Go down3 letters, starts with DDIP
- 39. Go down4 letters, starts with DDIVE
- 41. Sprinkling on potatoes4 letters, starts with SSALT
- 43. Pointer's question5 letters, starts with SSEEIT
- 45. Guy who churns butter8 letters, starts with DDAIRYMAN
- 47. Balkans resident4 letters, starts with SSERB
- 50. Ancestral sequences ... or what's in this puzzle's starred answers?14 letters, starts with LLINESOFDESCENT
- 52. Perjurer's violation3 letters, starts with LLIE
- 54. At-home diagnostic8 letters, starts with SSELFTEST
- 58. Kinda close?3 letters, starts with IISH
- 61. Become even worse than one thought possible ... or what you must do when entering this puzzle's starred answers?13 letters, starts with SSINKTOANEWLOW
- 62. Works on heroes, say4 letters, starts with OODES
- 63. Gesture of approval3 letters, starts with NNOD
- 64. Aspen anchor4 letters, starts with RROOT
- 65. Potpie morsel3 letters, starts with PPEA
- 66. Go down3 letters, starts with SSAG
- 68. Some clock batteries3 letters, starts with AAAS
- 70. MRI reviewers3 letters, starts with MMDS
- 71. Break point on the road8 letters, starts with RRESTSTOP
- 73. "Are we there ___?"3 letters, starts with YYET
- 75. "Daniel" singer John5 letters, starts with EELTON
- 78. Insolent brat4 letters, starts with SSNOT
- 80. Prefix with liberalism3 letters, starts with NNEO
- 83. Bread one may eat with chicken vindaloo4 letters, starts with NNAAN
- 85. Go down4 letters, starts with DDROP
- 90. Better than expected ... or worse than expected on a golf course8 letters, starts with AABOVEPAR
- 92. Go down3 letters, starts with SSET
- 94. Iconic moment between Kirk and Uhura on a 1968 episode of "Star Trek"4 letters, starts with KKISS
- 95. Thin strip of wood4 letters, starts with SSLAT
- 96. Number one7 letters, starts with TTHEBEST
- 97. Palindrome preceding "cuff" in anatomy7 letters, starts with RROTATOR
- 98. Removal from a sheet7 letters, starts with EERASURE
- 100. Festive nights4 letters, starts with EEVES
- 102. Had a meal at home7 letters, starts with DDINEDIN
- 105. Some zesty sauces6 letters, starts with SSALSAS
- 108. Revolutionary Ethan5 letters, starts with AALLEN
- 112. "If Only You Knew" singer LaBelle5 letters, starts with PPATTI
- 113. Bit of stifled laughter5 letters, starts with SSNORT
- 115. PC support expert5 letters, starts with IITPRO
- 116. QB Matthew Stafford during his MVP season in 2025, e.g.5 letters, starts with LLARAM
- 118. Drift on the wind4 letters, starts with WWAFT
- 120. "You have no ___"4 letters, starts with IIDEA
- 122. Firestone product4 letters, starts with TTIRE
- 125. Soccer star Hamm3 letters, starts with MMIA
- 127. Birthday cake number3 letters, starts with AAGE
- 128. Worshiped figure3 letters, starts with GGOD
Fresh clues from recent puzzles
Questions
What is the answer to “Mathematician who wrote "Introduction to Analysis of the Infinite"”?
EULER, 5 letters.
When was “Mathematician who wrote "Introduction to Analysis of the Infinite"” last seen in a crossword?
In the Washington Post Sunday crossword of September 27, 2026.
How many letters does the answer have?
5 letters, starting with E.