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Level of liquid in the cylindrical tank, AKA Quarter-Tank Problem

This online calculator finds the height above the bottom of a horizontal cylinder (such as a cylindrical gas tank) to which the it must be filled for it to be full at specified percentage (for example, one quarter full amounts)

Level of liquid in the cylindrical tank, AKA Quarter-Tank ProblemCreative Commons Attribution/Share-Alike License 3.0 (Unported)
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  • Logarithm

    This online calculator outputs logarithm of a number to a given base, as well as natural logarithm and common (decadic) logarithm

  • Luhn algorithm

    Calculates digit sequence checksum using Luhn algorithm (mod 10), calculates validation digit (the digit to be appended to the digit sequence to make whole sequence ckecksum equal to zero).

  • Math equation simplification

    Simplifies math equation with single variable (x). In eqation you may also use integer and fractional numerical constants arithmetic operations, trigonometric and hyperbolic functions.

  • Math operations on degrees

    This online calculator supports simple mathematical operations, addition/subtraction/multiplication/division, on degrees

  • Math worksheets generator for elementary school

    Random worksheets, which are generated automatically from user parameters.

Math equation syntax

Math equation samples.

Math equation syntaxCreative Commons Attribution/Share-Alike License 3.0 (Unported)
  • Mathematical calculator

    Mathematical calculator is used for evaluation math expressions with arithmetic operations (+-/*^) and functions: sqrt - square root, exp - exponential function, lb - binary logarithm, lg - decimal logarithm, ln - natural logarithm, sin - sine, cos - cosine, tan - tangent, cot - cotangent, sec - secant, csc - cosecant, arcsin - arcsine, arccos - arccosine, arctan - arctangent, arccot - arccotangent, arcsec - arcsecant, arccosec - arccosecant and others

  • Mathematical competition tasks

    Calculator solving some mathematical competition task

  • Matrix Multiplication

    Matrix Multiplication

  • Matrix Rank

    This online calculator determines the rank of a given matrix

  • Matrix Transpose

    Matrix Transpose

  • Median of a triangle

    This online calculator computes median of a triange given triangle sides

  • Modular inverse of a matrix

    This calculator finds modular inverse of a matrix using adjugate matrix and modular multiplicative inverse

  • Modular Multiplicative Inverse

    This calculator calculates modular multiplicative inverse of an given integer a modulo m

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