英语翻译Calculate the discriminant of f(x) in the following quadratics and hence state how many solutions there are to the equation F(x)=0
英语翻译Calculate the discriminant of f(x) in the following quadratics and hence state how many solutions there are to the equation F(x)=0
// discriminant negative, sphere passed edge too far away return false; } }// sphere missed the edge, check for a collision with the first vertex. note // that we only need to check one vertex per call to check all vertices.
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It's been several years since this question was asked, but I have compiled a benchmark of several methods to calculate the length of an integer. def libc_size(i): return libc.snprintf(buf, 100, c_char_p(b'%i'), i) # equivalent to `return snprintf(buf, 100, "%i", i);` def...
calculate SMAPE smape(actual, forecast) [1] 9.721348 As we got earlier the SMAPE value is 9.72%. When we need to compare different models SMAPE value will be more useful. Linear Discriminant Analysis in R » LDA Prediction » The postHow to Calculate SMAPE in Rappeared first onfinnstats...
Calculate the distance between the target and all examples in the training set Select K examples closest to target in the training set Assign target to the most common class among its K nearest neighbors Note that our answer will also depend on the K we choose ...
Get the previous value to calculate the delta (this is getting a little slow): SELECTvalueFROMfeeds_statsWHEREfeed_id=?ANDname='total_articles'ORDERBYdateDESCLIMIT1 Insert the new value and delta: INSERTINTOfeeds_stats (date,feed_id,name,value,delta)VALUES('".date("...