PicC 9.50 dsPIC Manual.pdf

Library FunctionsATANSynopsis#include double atan (double x)DescriptionThis function returns the arc tangent of its argument, i.e. it returns an angle e in the range - πExampleSee Also#include #include voidmain (void){printf("%f\n", atan(1.5));}sin(), cos(), tan(), asin(), acos(), atan2()Return ValueThe arc tangent of its argument.124