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%微积分例1:一元函数求导（diff,gradient) clear;close; x=-2*pi:0.1:2*pi; y=sin(x); dy=diff(y)./diff(x); plot(x,y,x(1:length(x)-1),dy); hold on; yx =gradient(y,x); plot(x,yx,'ro');

#include #define pi 3.1415 double gaussian(double x) { double resu; resu=-0.5*x*x; resu=exp(resu); resu=resu/sq

function y= gauss(x, mean,sig) y=(1/(sqrt(2*pi)*sig))*exp(-((x-mean).^2)/(2*sig^2));

% area2rlc.m % function area2RLC(ar, sl) % used by syn_fire.m in synthesis clear i; w = 2*pi * 4000.0; rho = 1.14e-3; mu = 1.86e-4; c = 3.53e4; eta = 1.4; lambda = 5.5e-5; epsilon

function y= gauss(x, mean,sig) y=(1/(sqrt(2*pi)*sig))*exp(-((x-mean).^2)/(2*sig^2));

/* @(#)e_acos.c 5.1 93/09/24 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. * * Developed at SunPro, a Sun Micros

/* @(#)e_rem_pio2.c 5.1 93/09/24 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. * * Developed at SunPro, a Sun Mi

/* ef_rem_pio2.c -- float version of e_rem_pio2.c * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. */ /* * ==================================================== * Copyrig

package Control_PetInfo; import Model_PetInfo.PetInfo; import Model_PetInfo.PetInfoBean; import javax.servlet.*; import javax.servlet.http.*; import java.io.PrintWriter; import java.io.IOExcepti

package Model_PetInfo; import DataBase.ConDataBase; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.ResultSet; import java.sql.Statement; import java.sql.Types;