Question 719863
Please put arguments to functions in parentheses. What you posted meant:
{{{y=sin(theta/2) + 1/2}}}
but you might have intended:
{{{y=sin( theta/2 + 1/2)}}}
Without the parentheses we can't tell the difference.<br>
The midline of a sin function is a horizontal line. The equation of all horizontal lines have the form:
y = number<br>
The midline of the first equation above is y = 1/2
The midline of the second equation above is y = 0