内容摘要：Palestinians carry the body of Mahmoud Al-Kharaz, 32, who was killed during an Israeli military raid, as they attend his funeral in the West Bank city of Nablus, Tuesday, May 27, 2025. (AP Photo/Majdi Mohammed)

Palestinians carry the body of Mahmoud Al-Kharaz, 32, who was killed during an Israeli military raid, as they attend his funeral in the West Bank city of Nablus, Tuesday, May 27, 2025. (AP Photo/Majdi Mohammed)

The S&P 500 jumped 3.3% Monday. The Dow Jones Industrial Average rose more than 1,100 points, and the Nasdaq composite rallied 4.3%.Hopes for an economy less encumbered by tariffs also sent crude oil prices higher. The U.S. dollar strengthened against other currencies, and Treasury yields jumped on expectations the Federal Reserve won’t have to cut interest rates so deeply this year in order to protect the economy.

Analysts warned conditions could still quickly change, as has so often happened in President Donald Trump’s trade wars.The S&P 500 rose 184.28 points, or 3.3%, to 5,844.19.The Dow Jones Industrial Average rose 1,160.72 points, or 2.8%, to 42,410.10.

The Nasdaq composite rose 779.43 points, or 4.3%, to 18,708.34.The Russell 2000 index of smaller companies rose 69.12 points, or 3.4%, to 2,092.20.

The S&P 500 is down 37.44 points, or 0.6%.

The Dow is down 134.12 points, or 0.3%.“Harvard College does not offer any so-called remedial math classes,” said James Chisholm, a spokesperson for the university’s Faculty of Arts and Sciences, which encompasses its undergraduate program.

He added: “Math MA5 is a college-level calculus class. It is simply a new format of Math MA, the introductory freshman calculus course that has been taught at Harvard for decades.”Students in Mathematics MA and MA5 have the exact same homework, exams and grading structure, according to Chisholm. The only difference is that the former meets three days a week and the latter five days a week. They are both prerequisites for higher-level math courses.

Chisholm provided asks students to write a formula for determining the total number of cases during a hypothetical epidemic after a certain amount of days.in September that Director of Introductory Math Brendan Kelly said Mathematics MA5 is “aimed at rectifying a lack of foundational algebra skills among students” created by the COVID-19 pandemic.