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FloatApprox |
Syntax |
FloatApprox(X:RAT, RelErr:RAT):RAT |
Summary |
approx. of rational number of the form M*10^E |
Description |
This function computes an approximation of the form M*10^E to a rational number X and to within a maximum specified relative error. RelErr says indirectly how many decimal digits to include in the mantissa. Compare with "MantissaAndExponent". |
Example |
FloatApprox(1/3, 10^(-2)); 333/1000 ------------------------------- FloatApprox(1000000/3, 10^(-2)); 333000 ------------------------------- FloatApprox(1/3, 10^(-9)); 3333333333/10000000000 ------------------------------- |
See also: |