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  2. Tape diagram - Wikipedia

    en.wikipedia.org/wiki/Tape_diagram

    A tape diagram is a rectangular visual model resembling a piece of tape, that is used to assist with the calculation of ratios and addition, subtraction, and commonly multiplication. It is also known as a divided bar model, fraction strip, length model or strip diagram.

  3. Yield curve - Wikipedia

    en.wikipedia.org/wiki/Yield_curve

    However the 10-year vs 3-month portion did not invert until March 22, 2019 and it reverted to a positive slope by April 1, 2019 (i.e. only 8 days later). [25] [26] The month average of the 10-year vs 3-month (bond equivalent yield) difference reached zero basis points in May 2019. Both March and April 2019 had month-average spreads greater than ...

  4. TED spread - Wikipedia

    en.wikipedia.org/wiki/TED_spread

    The TED spread is the difference between the interest rates on interbank loans and on short-term U.S. government debt ("T-bills"). TED is an acronym formed from T-Bill and ED, the ticker symbol for the Eurodollar futures contract. Initially, the TED spread was the difference between the interest rates for three-month U.S. Treasuries contracts ...

  5. United States Treasury security - Wikipedia

    en.wikipedia.org/wiki/United_States_Treasury...

    The minimum purchase is $100; it had been $1,000 prior to April 2008. Mature T-bills are also redeemed on each Thursday. Banks and financial institutions, especially primary dealers, are the largest purchasers of T-bills. Like other securities, individual issues of T-bills are identified with a unique CUSIP number. The 13-week bill issued three ...

  6. Word problem (mathematics education) - Wikipedia

    en.wikipedia.org/wiki/Word_problem_(mathematics...

    For instance, if the one solving the math word problem has a limited understanding of the language (English, Spanish, etc.) they are more likely to not understand what the problem is even asking. In Example 1 (above), if one does not comprehend the definition of the word "spent," they will misunderstand the entire purpose of the word problem.

  7. Recession - Wikipedia

    en.wikipedia.org/wiki/Recession

    The model, developed by economists Arturo Estrella and Frederic Mishkin, uses the difference between the yields on 10-year Treasury bonds and 3-month Treasury bills, as detailed in their research papers and working papers for the National Bureau of Economic Research. Their models estimate the 12-month-ahead recession probabilities using the ...

  8. List of undecidable problems - Wikipedia

    en.wikipedia.org/wiki/List_of_undecidable_problems

    In the ray tracing problem for a 3-dimensional system of reflective or refractive objects, determining if a ray beginning at a given position and direction eventually reaches a certain point. [ 16 ] Determining if a particle path of an ideal fluid on a three dimensional domain eventually reaches a certain region in space.

  9. Algorithm - Wikipedia

    en.wikipedia.org/wiki/Algorithm

    Flowchart of using successive subtractions to find the greatest common divisor of number r and s. In mathematics and computer science, an algorithm (/ ˈ æ l ɡ ə r ɪ ð əm / ⓘ) is a finite sequence of mathematically rigorous instructions, typically used to solve a class of specific problems or to perform a computation. [1]