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+// Scilab Code Ex18.2: Change in sound level for doubling intensity: Page-361 (2010)
+I1 = 1;    // For simplicity assume first intensity level to be unity, W per metre square
+I2 = 2*I1;    // Intensity level after doubling, watt per metre square
+dA_I = 10*log10(I2/I1);    // Difference in gain level, dB
+printf("\nThe sound intensity level is increased by = %1d dB", dA_I);
+
+// Result
+// The sound intensity level is increased by = 3 dB 
+\ No newline at end of file