This is a standard floatingpointrepresentation that the first bit of mantissa must be 1.
这是一个标准的浮点表示法，特点是尾数的第一个元不可以是零。
2
Floatingpointrepresentation, Gaussian elimination with partial pivoting, scaling of computations with matrix size, banded and tri-diagonal systems, LU decomposition.
浮点数表示法，含部份换轴之高斯消去法，使用矩阵大小之计算尺度调整，带状及三角对角系统，LU分解。
3
One takes a double-precision floatingpoint as input, another takes an integer and a scale factor, and another takes a String representation of a decimal number.