coversed cosine

The covercosine, also called the coversed cosine, is a little-used trigonometric function defined by covercos(z) | congruent | vercos(1/2 π - z) | = | 1 + sin z, where vercos z is the vercosine and sin z is the sine.

coversine | excosecant | exsecant | hacovercosine | hacoversine | havercosine | haversine | vercosine | versine