You
don't need to understand what SIN, TAN⁻¹, or COS mean, just how to
put it into the calculator to use this, just plug in the variables
and put it into your calculator.
d=the
diagonal length of your tv
e=the
first part of the aspect ratio
f=the
second part of the aspect ratio (e.g. with a 16:9 (widescreen) aspect
ratio e=16 and f=9)
Your
TV's length across=(SIN(TAN⁻¹(e/f)))*d
Your
TV's height=(COS(TAN⁻¹(e/f)))*d
If
you don't know your diagonal length but you do know your length and
aspect ratio, put this in the calculator:
w=Your
TV's length
e=the
first part of your aspect radio
f=the
second part of the aspect ratio (e.g. with a 16:9 (widescreen) aspect
ratio e=16 and f=9)
Your
TV's diagonal length using length across=w/(SIN(TAN⁻¹(e/f)))
Your
TV's diagonal length using height up and down=w/(COS(TAN⁻¹(e/f)))
