function?[]?=?checkNumericalGradient（）
%?This?code?can?be?used?to?check?your?numerical?gradient?implementation?
%?in?computeNumericalGradient.m
%?It?analytically?evaluates?the?gradient?of?a?very?simple?function?called
%?simpleQuadraticFunction?（see?below）?and?compares?the?result?with?your?numerical
%?solution.?Your?numerical?gradient?implementation?is?incorrect?if
%?your?numerical?solution?deviates?too?much?from?the?analytical?solution.
??
%?Evaluate?the?function?and?gradient?at?x?=?[4;?10];?（Here?x?is?a?2d?vector.）
x?=?[4;?10];
[value?grad]?=?simpleQuadraticFunction（x）;

%?Use?your?code?to?numerically?compute?the?gradient?of?simpleQuadraticFunction?at?x.
%?（The?notation?“@simpleQuadraticFunction“?denotes?a?pointer?to?a?function.）
numgrad?=?computeNumericalGradient（@simpleQuadraticFuncti

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-03-21?15:05??SparseAutoencoder\
?????文件????????1982??2011-01-06?09:27??SparseAutoencoder\checkNumericalGradient.m
?????文件????????1190??2016-03-17?20:51??SparseAutoencoder\computeNumericalGradient.m
?????文件????????2647??2011-01-05?17:48??SparseAutoencoder\display_network.m
?????文件????20971720??2011-01-04?13:39??SparseAutoencoder\IMAGES.mat
?????文件?????????622??2011-01-05?16:13??SparseAutoencoder\initializeParameters.m
?????文件?????????811??2011-04-28?14:02??SparseAutoencoder\loadMNISTImages.m
?????文件?????????516??2011-04-26?08:32??SparseAutoencoder\loadMNISTLabels.m
?????目錄???????????0??2011-01-04?13:38??SparseAutoencoder\minFunc\
?????文件????????3251??2011-01-04?13:39??SparseAutoencoder\minFunc\ArmijoBacktrack.m
?????文件?????????807??2011-01-04?13:39??SparseAutoencoder\minFunc\autoGrad.m
?????文件?????????901??2011-01-04?13:39??SparseAutoencoder\minFunc\autoHess.m
?????文件?????????317??2011-01-04?13:39??SparseAutoencoder\minFunc\autoHv.m
?????文件?????????870??2011-01-04?13:39??SparseAutoencoder\minFunc\autoTensor.m
?????文件?????????385??2011-01-04?13:39??SparseAutoencoder\minFunc\callOutput.m
?????文件????????1845??2011-01-04?13:39??SparseAutoencoder\minFunc\conjGrad.m
?????文件?????????995??2011-01-04?13:39??SparseAutoencoder\minFunc\dampedUpdate.m
?????文件????????2421??2011-01-04?13:39??SparseAutoencoder\minFunc\example_minFunc.m
?????文件????????1604??2011-01-04?13:39??SparseAutoencoder\minFunc\example_minFunc_LR.m
?????文件?????????107??2011-01-04?13:39??SparseAutoencoder\minFunc\isLegal.m
?????文件?????????924??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgs.m
?????文件????????2408??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.c
?????文件????????7707??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.mexa64
?????文件????????7733??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.mexglx
?????文件????????9500??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.mexmac
?????文件???????12660??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.mexmaci
?????文件????????8800??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.mexmaci64
?????文件????????7168??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.mexw32
?????文件????????9728??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsC.mexw64
?????文件?????????614??2011-01-04?13:39??SparseAutoencoder\minFunc\lbfgsUpdate.m
?????目錄???????????0??2011-01-04?13:38??SparseAutoencoder\minFunc\logistic\
............此處省略30個(gè)文件信息