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The easiest way before learning to be more efficient is to break it down into it's multiplicative tree. So 156 becomes 78 x 2: 78 = 39 x 2. What is left now is 2 x 2 x 39 (39 is 13 x 3 and does not simply further) and 4 x 39 can be simplified. Pulling out the 4 from the radical becomes 2 * sqrt(39) where sqrt means "Take the square root of" what's in parentheses.
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What does sqrt function return?
square root of the argument
What is Dynamic Initialization in java?
Java allows us to perform 'dynamic initialization' of variables too.What this means is that you can initialize variables using expressions (as will be seen in the example).In the program, we have a int variable 'root' which has an initial defined value of 10. We then create another variable 'square' of the same data-type, which will store the square of root.//This program displays dynamic initialization in javapublicclassExample{publicstaticvoidmain(String args[]){introot=10; //root has a constant value assignedintsquare=root*root; //notice that square has "root*root" assigned to it//if u change the value of root,//the value of square changes accordingly//after each compilation//display the values of square and rootSystem.out.println("Root= " +root + " Square= "+square);}}
Are resistor heating affected by line frequency?
No. The heating effect is the product of the square of the current and resistance, where the current is a root-mean-square value.A.C. current is always expressed as a root-mean-square (r.m.s.) value, which is equivalent to a d.c. current which produces exactly the same heating effect. Root-mean-square values are affected by the shape of a waveform, but not by its frequency.
What is rms if sine wave is 20 cm peak to peak?
For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.
How do you square root in java?
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