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Difference between float and double

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Mahammad

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Hi,
i have a big confusion using float and double data types .any one have idea about its use and limitations.
 

float and double both are used for floating point and (irrational and rational) numbers size of float is 4 bytes in c and range of +/- 3.4e +/- 38 (~7 digits) and for double : +/- 1.7e +/- 308 (~15 digits) 8bytes and long double 10bytes you can refer let us c by yeshvant kanetkar
example-float a, b, c;
a = 2.854;
b = 7;c = 1.5e-7;
 
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