| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Last year's cycle (2026): $4,750; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Last year's cycle (2026): Need-based partial scholarship: Amount: Unconfirmed — check official site. Requested within the online application; does not affect the admission decision.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Unconfirmed — check official site | Last year's cycle (2026): Need-based partial scholarship: Amount: Unconfirmed — check official site. Requested within the online application; does not affect the admission decision.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Up to grade 12; Grade timing: Unconfirmed — check official site | Grades 11–12 (provider uses rising grades) | Grades 6–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Requirement: Open to grades up to 12; Requirement: Mathematical maturity of an advanced high-school student | Citizenship: US citizen; Citizenship: US permanent resident; Requirement: Open to rising grades 11–12; Requirement: Strong understanding of English | Requirement: Open to grades 6–12 |
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| Session dates or duration | Unconfirmed — check official site | Last year's cycle (2026): Starts July 19, 2026; Ends August 1, 2026; 2 weeks; 2027: Unconfirmed — check official site | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site |
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| Format | Online | In person | Online |
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| Housing and supervision | Non-residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Live online classes scheduled in Pacific time | Troy, NY | Worldwide online |
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| Selection and application | Selection: Applicants must persuade Euler Circle that they are prepared and a good instructional fit; Euler Circle says ordinary seat scarcity usually is not the main constraint and does not publish acceptance statistics. | Application materials: Essay; Recommendations | Selection: The organizer calls admission competitive but publishes no applicant count, cohort size, or acceptance rate. |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-09 | Source 1 · checked 2026-10-24 |
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