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. 2024 Mar 1;14:5130. doi: 10.1038/s41598-024-55836-6

Table 2.

Mathematical and graph symbols of activation functions66.

Transfer function Hidden layer Out layer
Graph of activation function graphic file with name 41598_2024_55836_Figa_HTML.gif graphic file with name 41598_2024_55836_Figb_HTML.gif
Equations a=tansig(n)=2(1+exp(-2n)-1) a=purelin(n)=n