Integer and floats

You can make the following operations with integer and floats (i.e. real mumbers)

Some simple examples are



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4+2



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10-42



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4 * 4



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10/3



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10//3



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10**3

Exercise 1.1

Compute the number of seconds since the day you were born



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It is also posible to use complex numbers. Instead of using $i$ for $\sqrt{-1}$ python uses j.



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1j**2

Very common mathematical operations, sucha as taking the logarithm, can only be used after importing the module math.

For instance:



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import math



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math.log(10) #natural logarithm



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math.log10(10) #base 10 logarith,



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math.sqrt(10) # square root



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math.exp(2) # exponential

Compute the value for the golden ratio number $(1+\sqrt{5})/2$



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