Thin the blood and prevent clots (if you have a man-made replacement valve). Doctors also prescribe these medicines for mitral stenosis or other valve defects that raise the risk of blood clots. Treat coronary heart disease. Medicines for coronary heart disease can reduce your heartâs workload and relieve symptoms.
undefined is a property of the global object, i.e. it is a variable in global scope. The initial value of undefined is the primitive value undefined. In modern browsers (JavaScript 1.8.5 / Firefox 4+), undefined is a non-configurable, non-writable property per the ECMAScript 5 specification. Even when this is not the case, avoid overriding it.
The tangent will be undefined wherever its denominator (the cosine) is zero. Thinking back to when you learned about graphing rational functions, a zero in the denominator means you'll have a vertical asymptote. So the tangent will have vertical asymptotes wherever the cosine is zero: at âÏ/2, Ï/2, and 3Ï/2.