1. 从键盘输入两个命题变元P和Q的真值，求它们的合取、析取、条件和双条件的真值。（A）
2. 求任意一个命题公式的真值表（B），并根据真值表求主范式（C）
注意：题目类型分为A，B，C三类，其中A为基本题，完成A类题目可达到设计的基本要求，其他均为加分题，并按字母顺序分数增加越高。
Input two propositional variables P and Q is the true value from the keyboard, find their conjunctive, disjunctive, conditional, and biconditional true value. (A)
Lord paradigm (C) (2) seek any propositional formula a truth table (B), and in accordance with the truth table
Note: topic types are divided into three categories A, B, C, where A is the basic question, to complete the Class A subject to meet the design requirements, the other are the bonus, in alphabetical order the higher the score increases. (2012-03-12, C/C++, 750KB, 下载5次)
* 本算法用最小二乘法依据指定的M个基函数及N个已知数据进行曲线拟和
* 输入: m--已知数据点的个数M
* f--M维基函数向量
* n--已知数据点的个数N-1
* x--已知数据点第一坐标的N维列向量
* y--已知数据点第二坐标的N维列向量
* a--无用
* 输出: 函数返回值为曲线拟和的均方误差
* a为用基函数进行曲线拟和的系数,
* 即a[0]f[0]+a[1]f[1]+...+a[M]f[M].
* The algorithm using the least-squares method based on the designated function of M and N-known curve data to be imported and* : m-- the known number of data points M* f-- From M* n vector function-- known data points the number N-1* x-- known data points of the first N-dimensional coordinates listed Vector* y-- known data points of the second N-dimensional coordinates shown in a vector*-- useless* Output : function return value to the curve-fitting and the mean square error* for the use of a base function and the curve fitting coefficients,* is a f [0] [0] a [1] f [a] ... a [M] f [M]. (2006-11-13, C/C++, 3KB, 下载24次)