// Use the macro language as a calculator print(2+2); 2+2; //print() is assumed sqrt(2) // 4 decimal places pow(0.11, 6) // or scientific notation d2s(pow(0.11, 6), 9); // "Double To String" 3000*2400*4/(1024*1024) d2s(3000*2400*4/(1024*1024),1)+'MB' exchangeRate = 1.18; "$"+d2s(100/exchangeRate, 2) print(0/0); // NaN (Not-A-Number) print(1/0); // Infinity print(-1/0); // -Infinity print(isNaN(0/0)); // use isNaN() to detect NaNs print(true, false); // true=1, false=0