mathematical equation in matlab

how to write this equation in matlab

angle=tan(2*pi*0.25) but i want it in radian form

i know its equal 1/0

Answer 1

[madhan ravi]

Angle = tan(sym((2*pi*0.25)))

Answer 2

[Walter Roberson]

angle = sinpi(2*0.25) / cospi(2*0.25)

That is, there is no tanpi() function but there is a sinpi() and cospi() that are intended to be more accurate for these kinds of boundary cases.

If you have the symbolic toolbox you could also

Pi = sym(pi);     %specially recognized
angle = tan(2 * Pi * 0.25)

[madhan ravi]

Also better is to not name a variable angle because there's an inbuilt function named angle(...)