
Change Exp Start and Exp End to determine X value, press Exp Start and input 1.4rad (or °):
Press Expression to enter the edit interface, press Next to cycle switch oeperational character
or expression. E.g input (x-1)*x(x+1):
Default : Exp Start: 0°
Exp End: 180°
Expression: sin(x)
Unit: rad or °
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