Added degrees() and radians() to mathmodule. Closes patch 552452 and
feature request 426539.
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 4609f60..b6489fd 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -274,6 +274,31 @@
static char math_log10_doc[] =
"log10(x) -> the base 10 logarithm of x.";
+static const double degToRad = 3.141592653589793238462643383 / 180.0;
+
+static PyObject *
+math_degrees(PyObject *self, PyObject *args)
+{
+ double x;
+ if (! PyArg_ParseTuple(args, "d:degrees", &x))
+ return NULL;
+ return PyFloat_FromDouble(x / degToRad);
+}
+
+static char math_degrees_doc[] =
+"degrees(x) -> converts angle x from radians to degrees";
+
+static PyObject *
+math_radians(PyObject *self, PyObject *args)
+{
+ double x;
+ if (! PyArg_ParseTuple(args, "d:radians", &x))
+ return NULL;
+ return PyFloat_FromDouble(x * degToRad);
+}
+
+static char math_radians_doc[] =
+"radians(x) -> converts angle x from degrees to radians";
static PyMethodDef math_methods[] = {
{"acos", math_acos, METH_VARARGS, math_acos_doc},
@@ -283,6 +308,7 @@
{"ceil", math_ceil, METH_VARARGS, math_ceil_doc},
{"cos", math_cos, METH_VARARGS, math_cos_doc},
{"cosh", math_cosh, METH_VARARGS, math_cosh_doc},
+ {"degrees", math_degrees, METH_VARARGS, math_degrees_doc},
{"exp", math_exp, METH_VARARGS, math_exp_doc},
{"fabs", math_fabs, METH_VARARGS, math_fabs_doc},
{"floor", math_floor, METH_VARARGS, math_floor_doc},
@@ -294,6 +320,7 @@
{"log10", math_log10, METH_VARARGS, math_log10_doc},
{"modf", math_modf, METH_VARARGS, math_modf_doc},
{"pow", math_pow, METH_VARARGS, math_pow_doc},
+ {"radians", math_radians, METH_VARARGS, math_radians_doc},
{"sin", math_sin, METH_VARARGS, math_sin_doc},
{"sinh", math_sinh, METH_VARARGS, math_sinh_doc},
{"sqrt", math_sqrt, METH_VARARGS, math_sqrt_doc},