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SUBST-RIES-TARGET - RIES (RILYBOT Inverse Equation Solver)    




equation root of equation distance from your target accurate to within complexity

Legend and Statistics: SUBST-RIES-LEGEND


For a more thorough search and many runtime options,

get the RIES source code and compile your own!


More serious mathematical users might prefer

the Inverse Symbolic Calculator


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You seem to have given 'SUBST-E-TARGET', which is outside the range that RIES can handle. I will substitute the natural logarithm of this value, which is SUBST-O-TARGET: XLTE.1.

The above equations approximate the logarithm of the value you gave. If you solve them for x, you can express your original 'SUBST-E-TARGET' as ex. (If you do not want this substitution, perform your own transformation. For example, you could give RIES the cube root of your number.) XLTE.2.

{*} The number you specified caused a calculation overflow. The limit is approximately 10308. XLTE.3.

{*} Unused (error 2) XLTE.4.

{*} Your input contains more than one comma. RIES and ORIES treat a comma as a decimal point (the standard in much of the world). Do not separate groups of digits with anything, except for a single '.' or ',' as a decimal point. XLTE.5.

{*} Your input 'SUBST-C-TARGET' contains disallowed characters. RIES does not accept expressions, only numbers. Instead of "Sqrt[Pi-Phi]" or "1.111^2", give a plain number, like 1.234321, or 6.02e23 for scientific notation.
{*} This online RIES server does not accept command-line options like --numeric-anagram. To access these options you need to download the source code and compile RIES yourself. XLTE.6.

{*} Your input 'SUBST-C-TARGET' appears to be zero. RIES does not accept a zero input. XLTE.7.

{*} Your input 'SUBST-C-TARGET' appears to be a non-integer. The 'integer-only expressions' option works only when the target number is an integer. XLTE.8.

{*} Your input 'SUBST-C-TARGET' is too large or small for RIES to handle. RIES can directly handle numbers between 10-6 and 106. XLTE.9.

{*} If you give a number larger than 106 using scientific notation (in this case, 'SUBST-E-TARGET'), RIES will automatically take the natural logarithm. XLTE.10.

{*} Suggestion:

Take the logarithm of your number:

      -6.0221413e23 → -(e54.75490003)

then use RIES to find an equation for the exponent:

      ries 54.75490003x-(1/pi+e) = 72+e

and substitute "ln(-y)" for x in the equation:

      ln(-y)-(1/pi+e) = 72+e

which then solves to:

      y = -(e(72+1/pi+2e)) = -6.02198...×1023 XLTE.11.

{*} Suggestion: Take the cube root of your number, submit it to RIES, then express your original number as "... to the power of 3". XLTE.12.

{*} Suggestion: Add a decimal point between two digits: 8675309867.5309. XLTE.13.

{*} The allowed format for entering numbers in RIES is: A '+' or '-' sign, ASCII digits '0' through '9' (with one '.' or ',' as a decimal point), and an optional 'e' with exponent. Examples:


Any input equal to zero (such as -0.0 or 0.0e10) is not considered valid. XLTE.14.

XLTS.15. Your target value: XLTE.15.

XLTS.16. XLTE.16.

XLTS.17. RIES command: XLTE.17.

XLTS.18. Not executed XLTE.18.

XLTS.19. Your input has been interpreted as 'SUBST-O-TARGET' XLTE.19.

XLTS.20. No RIES output due to an error. XLTE.20.

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