{{ if or .Params.math (and .Site.Params.math.enable (ne .Params.math false)) }}
{{ partial "math.html" . }}
{{ end }}

{{ if or .Params.diagram (and .Site.Params.diagram.enable (ne .Params.diagram false)) }}
{{ partial "diagram.html" . }}
{{ end }}

{{ if or .Params.comment (and .Site.Params.comment.enable (ne .Params.comment false)) }}
{{ partial "comment.html" . }}
{{ end }}