sound111

1. 判断闰年 根据输入的具体年份（在1900-2100之间，要求对输入进行有效性检查），判断是否闰年，并给出相应的提示信息 (1. To determine leap year according to input a specific year (in 1900-2100 between the call for input validation), to determine whether a leap year, and gives the corresponding tips)

only the last question i can t think anymore,please check the other two answers above.

说明：  任意三角形上的任意阶Gauss积分程序 算法详见参考文献 H.T. Rathod, K.V. Nagaraja, B. Venkatesudu, N.L. Ramesh, Gauss Legendre quadrature over a triangle, J. Ind. Inst. Sci. 84 (2004) 183–188.(Gauss Legendre quadrature over any triangle)

说明：  该源码可以实现OFDM系统的比特加载和功率分配算法的仿真(The source code can be bit-loaded OFDM system and Power Allocation Algorithm for Simulation)

非常简洁的小波熵计算方法，它是一种趋势分析方法，可用于设备状态检测和故障诊断。(Wavelet entropy calculation is very simple method, which is a trend analysis method can be used to detect equipment status and fault diagnosis.)

The Cross Frame Scripting 翻译(The Cross Frame Scripting)

用pocklington方程矩量法计算半波对称阵子天线的电流分布(Pocklington equation method of moments to calculate the half-wave symmetric time around the antenna current distribution)

The word Radar is the acronym of Radio detection and ranging. Radar is an active instrument, which measures the echo of scattering objects, surfaces and volumes illuminated by an electromagnetic wave internally generated belonging to the microwave portion of the electromagnetic spectrum. It was born just before the second world war for detecting and ranging target for non-civilian scopes. In this case the requested spatial resolution was not so challenging for the technology available that time. The opening of new technological frontiers in the fifties, including the satellites and the space vehicles, demanded a better spatial resolution for application in geosciences remote sensing (RS). Synthetic aperture radar (SAR) technique was invented to overcome resolution restrictions encountered in radar observations from space and generally to improve the spatial resolution of radar images.(The word Radar is the acronym of Radio detection and ranging. Radar is an active instrument, which measures the echo of scattering objects, surfaces and volumes illuminated by an electromagnetic wave internally generated belonging to the microwave portion of the electromagnetic spectrum. It was born just before the second world war for detecting and ranging target for non-civilian scopes. In this case the requested spatial resolution was not so challenging for the technology available that time. The opening of new technological frontiers in the fifties, including the satellites and the space vehicles, demanded a better spatial resolution for application in geosciences remote sensing (RS). Synthetic aperture radar (SAR) technique was invented to overcome resolution restrictions encountered inradar observations from space and generally to improve the spatial resolution of radar images.)

Implementation of Borland-Pascal Delay function, encapsulated in a component. During this delay, all system messages are performed.

This is a matlab simulation for CPM which is using viterbi decoder to decode the signal. There is pulse shaping used in this file and the default signal is assumed to be rectangukar