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  2. Floating-point arithmetic - Wikipedia

    en.wikipedia.org/wiki/Floating-point_arithmetic

    For example, the following algorithm is a direct implementation to compute the function A(x) = (x−1) / (exp(x−1) − 1) which is well-conditioned at 1.0, [nb 12] however it can be shown to be numerically unstable and lose up to half the significant digits carried by the arithmetic when computed near 1.0.

  3. Arithmetic logic unit - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_logic_unit

    In computing, an arithmetic logic unit (ALU) is a combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers. [1] [2] This is in contrast to a floating-point unit (FPU), which operates on floating point numbers.

  4. TF-1 cell - Wikipedia

    en.wikipedia.org/wiki/TF-1_cell

    TF-1 cells are an immortal cell line derived from the human Erythroleukemia used in biomedical research. [1] This cells are proliferatively responsive to interleukin-3 (IL-3) or granulocyte-macrophage colony-stimulating factor (GM-CSF). [2] TF-1 cells have gene fusion of CBFA2T3-ABHD12. [3]

  5. CW complex - Wikipedia

    en.wikipedia.org/wiki/CW_complex

    An alternative cell decomposition has one (n-1)-dimensional sphere (the "equator") and two n-cells that are attached to it (the "upper hemi-sphere" and the "lower hemi-sphere"). Inductively, this gives S n {\displaystyle S^{n}} a CW decomposition with two cells in every dimension k such that 0 ≤ k ≤ n {\displaystyle 0\leq k\leq n} .

  6. Row and column vectors - Wikipedia

    en.wikipedia.org/wiki/Row_and_column_vectors

    Then one can write t = pQ = vMQ, so the matrix product transformation MQ maps v directly to t. Continuing with row vectors, matrix transformations further reconfiguring n-space can be applied to the right of previous outputs. When a column vector is transformed to another column vector under an n × n matrix action, the operation occurs to the ...

  7. SH-SY5Y - Wikipedia

    en.wikipedia.org/wiki/SH-SY5Y

    SH-SY5Y cells possess an abnormal chromosome 1, where there is an additional copy of a 1q segment and is referred to trisomy 1q. SH-SY5Y cells are known to be dopamine beta hydroxylase active, acetylcholinergic, glutamatergic and adenosinergic. The cells have very different growth phases, outlined in the surrounding pictures. The cells both ...

  8. Arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arithmetic

    For instance, the numeral for 10,405 uses one time the symbol for 10,000, four times the symbol for 100, and five times the symbol for 1. A similar well-known framework is the Roman numeral system . It has the symbols I, V, X, L, C, D, M as its basic numerals to represent the numbers 1, 5, 10, 50, 100, 500, and 1000.

  9. U937 (cell line) - Wikipedia

    en.wikipedia.org/wiki/U937_(cell_line)

    U-937 cells are a pro-monocytic model cell line used in biomedical research. [1] They were isolated from the histiocytic lymphoma of a 37-year-old male patient in 1974. [2] Due to the relative uniformity of expanded cultures and lower maintenance requirements these cells have been since used as an important tool for studying phagocyte differentiation and different kinds of cell-to-cell ...