Consider a function to be a more than 1 variable y = mx this is a one variable ,m y = w1*x1 , w1 the variable y = w1*x1 +w2 *x2 , 2 variables w1 and w2 y = w 1 *x 1 + w 2 * x 2 - - - - - - - - w n * X n n - variables these w1 --- w n are also called as weights. since from the data we have x1 , x2 ,,,,,x n and corresponding y 's the idea is to optimise the equation ,that means to find the optimised values for w1 .....w n , so why is that we cannot change the values , data as inputs ,the only thing we can do is to vary the data x using a multiplier w. so the input changes. assume the equation to be y = x1 + x2 x1 be the data from real life scenario the housing data ,like no of bedrooms x2 be the data as no of floors y - the price of the house with no of bedroom and no of floors y = 3 + 2 = 5 but the reals price might be $7 , so difference of the values 7 - 5 =2 so the loss is...
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