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+====== "min", "max" measure ======
+===== Purpose =====
+Find the time or frequency where a probed value hits a maximum or minimum.
+===== Syntax =====
+  min(probe="p(d)" begin=time end=time last first arg)
+===== Parameters =====
+^arg name  ^default    ^description  ^
+|probe     |required   |The name of a probe to measure.  |
+|arg       |false      |Find the time or frequency at which the min or max occurs. (instead of the value)  |
+|begin     |-infinity  |The window begins at this time or frequency.  |
+|end       |+infinity  |The window ends at this time or frequency.  |
+|first     |true       |Find the first min or max in the window.  (Cancels last.)  |
+|last      |false      |Find the last min or max in the window.  (Cancels first.)  |
+===== Examples =====
+  measure maxvalue = max(probe="v(out)" cross=0 last)
+Find the maximum value of v(out).
+  measure t2 = max(probe="v(out)" last arg)
+Find the last time when a maximum occurred.
+  measure t1 = max(probe="v(out)" arg last before=t2)
+Find the last time when a maximum occurred before t2.
+  param period = {t2-t1}
+  param frequency = {1/period}
+Params are interpreted like a functional language so they will be updated whenever t1 or t2 changes.
+  measure t0 = min(probe="v(out)" arg last before=t2)
+Find the last time when a minimum occurred before t2.
+  param risetime = {t2-t0}