mathgenerator/README.md

# mathgenerator

A math problem generator, created for the purpose of giving self-studying students and teaching organizations the means to easily get access to random math problems to suit their needs.

To try out generators, go to <https://todarith.ml/generate/>

If you have an idea for a generator, please add it as an issue and tag it with the "New Generator" label.

## Usage

The project can be install via pip

```bash
pip install mathgenerator
```

Here is an example of how you would generate an addition problem:

```python
from mathgenerator import mathgen

#generate an addition problem
problem, solution = mathgen.addition()

#another way to generate an addition problem using genById()
problem, solution = mathgen.genById(0)
```
## Documentation
`getGenList()` returns a list of all generators in the repository in the format `[id, title, self, funcname]`

`genById(id)` generates a problem, solution set with generator id `id` in the form of a list in the format `[problem, solution]`

`make_pdf(id, count)` creates a printable pdf worksheet with `count` problems generated by the generator with id `id`.

### More complicated worksheets

```
import sys
from mathgenerator import mathgen

worksheet = mathgen.make_worksheet("2020-11-29")
mathgen.add_section_with_task_to_worksheet(worksheet, 105, 5)
mathgen.add_section_with_task_to_worksheet(worksheet, 2, 5)
mathgen.write_pdf(worksheet)
```

## List of Generators

| Id   | Skill | Example problem | Example Solution | Function Name |
|------|-------|-----------------|------------------|---------------|
| 0 | Addition | 30+50= | 80 | addition |
| 1 | Subtraction | 75-7= | 68 | subtraction |
| 2 | Multiplication | 23*3= | 69 | multiplication |
| 3 | Division | 230/10 =  | 23 | division |
| 4 | Binary Complement 1s | 01110= | 10001 | binary_complement_1s |
| 5 | Modulo Division | 92%37= | 18 | modulo_division |
| 6 | Square Root | sqrt(144)= | 12 | square_root |
| 7 | Power Rule Differentiation | 7x^10 | 70x^9 | power_rule_differentiation |
| 8 | Square | 6^2= | 36 | square |
| 9 | LCM (Least Common Multiple) | LCM of 15 and 8 = | 120 | lcm |
| 10 | GCD (Greatest Common Denominator) | GCD of 16 and 13 =  | 1 | gcd |
| 11 | Basic Algebra | 3x + 4 = 6 | 2/3 | basic_algebra |
| 12 | Logarithm | log3(9) | 2 | log |
| 13 | Complex Division | 4/29= | 0.14 | complex_division |
| 14 | Decimal to Binary | Binary of 70= | 1000110 | decimal_to_binary |
| 15 | Binary to Decimal | 110000 | 48 | binary_to_decimal |
| 16 | Fraction Division | (2/9)/(9/10) | 20/81 | divide_fractions |
| 17 | Integer Multiplication with 2x2 Matrix | 4 * [[7, 4], [10, 2]] =  | [[28,16],[40,8]] | multiply_int_to_22_matrix |
| 18 | Area of Triangle | Area of triangle with side lengths: 7 20 17 =  | 57.445626465380286 | area_of_triangle |
| 19 | Triangle exists check | Does triangle with sides 20, 18 and 34 exist? | Yes | valid_triangle |
| 20 | Midpoint of the two point | (20,20),(12,14)= | (16.0,17.0) | midpoint_of_two_points |
| 21 | Factoring Quadratic | x^2+2x | (x+2)(x) | factoring |
| 22 | Third Angle of Triangle | Third angle of triangle with angles 16 and 2 =  | 162 | third_angle_of_triangle |
| 23 | Solve a System of Equations in R^2 | 2x - 4y = 44, -9x - 4y = 22 | x = 2, y = -10 | system_of_equations |
| 24 | Distance between 2 points | Find the distance between (10, 1) and (-17, 8) | sqrt(778) | distance_two_points |
| 25 | Pythagorean Theorem | The hypotenuse of a right triangle given the other two lengths 19 and 1 =  | 19.03 | pythagorean_theorem |
| 26 | Linear Equations | 2x + 15y = -211, 11x + -11y = 242 | x = 7, y = -15 | linear_equations |
| 27 | Prime Factorisation | Find prime factors of 199 | [199] | prime_factors |
| 28 | Fraction Multiplication | (6/7)*(9/5) | 54/35 | fraction_multiplication |
| 29 | Angle of a Regular Polygon | Find the angle of a regular polygon with 9 sides | 140.0 | angle_regular_polygon |
| 30 | Combinations of Objects | Number of combinations from 17 objects picked 2 at a time  | 136 | combinations |
| 31 | Factorial | 6! =  | 720 | factorial |
| 32 | Surface Area of Cube | Surface area of cube with side = 8m is | 384 m^2 | surface_area_cube |
| 33 | Surface Area of Cuboid | Surface area of cuboid with sides = 8m, 1m, 3m is | 70 m^2 | surface_area_cuboid |
| 34 | Surface Area of Cylinder | Surface area of cylinder with height = 4m and radius = 14m is | 1583 m^2 | surface_area_cylinder |
| 35 | Volum of Cube | Volume of cube with side = 13m is | 2197 m^3 | volume_cube |
| 36 | Volume of Cuboid | Volume of cuboid with sides = 14m, 17m, 18m is | 4284 m^3 | volume_cuboid |
| 37 | Volume of cylinder | Volume of cylinder with height = 45m and radius = 9m is | 11451 m^3 | volume_cylinder |
| 38 | Surface Area of cone | Surface area of cone with height = 40m and radius = 20m is | 4066 m^2 | surface_area_cone |
| 39 | Volume of cone | Volume of cone with height = 40m and radius = 4m is | 670 m^3 | volume_cone |
| 40 | Common Factors | Common Factors of 5 and 94 =  | [1] | common_factors |
| 41 | Intersection of Two Lines | Find the point of intersection of the two lines: y = -6/4x + 10 and y = 10x - 2 | (24/23, 194/23) | intersection_of_two_lines |
| 42 | Permutations | Number of Permutations from 10 objects picked 0 at a time =   | 1 | permutation |
| 43 | Cross Product of 2 Vectors | [-19, 5, 14] X [19, -3, -14] =  | [-28, 0, -38] | vector_cross |
| 44 | Compare Fractions | Which symbol represents the comparison between 2/9 and 7/3? | < | compare_fractions |
| 45 | Simple Interest | Simple interest for a principle amount of 2924 dollars, 2% rate of interest and for a time period of 8 years is =  | 467.84 | simple_interest |
| 46 | Multiplication of two matrices | Multiply<table><tr><td>-1</td><td>7</td><td>6</td></tr><tr><td>-10</td><td>7</td><td>-8</td></tr><tr><td>1</td><td>5</td><td>10</td></tr></table>and<table><tr><td>-10</td><td>-10</td><td>-8</td><td>-1</td></tr><tr><td>-7</td><td>-10</td><td>10</td><td>9</td></tr><tr><td>8</td><td>10</td><td>6</td><td>-8</td></tr></table> | <table><tr><td>9</td><td>0</td><td>114</td><td>16</td></tr><tr><td>-13</td><td>-50</td><td>102</td><td>137</td></tr><tr><td>35</td><td>40</td><td>102</td><td>-36</td></tr></table> | matrix_multiplication |
| 47 | Cube Root | cuberoot of 113 upto 2 decimal places is: | 4.83 | cube_root |
| 48 | Power Rule Integration | 3x^5 + 1x^10 + 10x^10 + 10x^9 + 1x^6 | (3/5)x^6 + (1/10)x^11 + (10/10)x^11 + (10/9)x^10 + (1/6)x^7 + c | power_rule_integration |
| 49 | Fourth Angle of Quadrilateral | Fourth angle of quadrilateral with angles 165 , 67, 58 = | 70 | fourth_angle_of_quadrilateral |
| 50 | Quadratic Equation | Zeros of the Quadratic Equation 94x^2+200x+90=0 | [-0.65, -1.48] | quadratic_equation |
| 51 | HCF (Highest Common Factor) | HCF of 7 and 12 =  | 1 | hcf |
| 52 | Probability of a certain sum appearing on faces of dice | If 3 dice are rolled at the same time, the probability of getting a sum of 16 = | 6/216 | dice_sum_probability |
| 53 | Exponentiation | 16^3 = | 4096 | exponentiation |
| 54 | Confidence interval For sample S | The confidence interval for sample [200, 282, 224, 297, 230, 261, 260, 223, 290, 203, 268, 295, 202, 280, 210, 274, 214, 270, 205, 258, 237, 265] with 80% confidence is | (256.5414375664878, 238.73128970623947) | confidence_interval |
| 55 | Comparing surds | Fill in the blanks 15^(1/6) _ 86^(1/5) | < | surds_comparison |
| 56 | Fibonacci Series | The Fibonacci Series of the first 6 numbers is ? | [0, 1, 1, 2, 3, 5] | fibonacci_series |
| 57 | Trigonometric Values | What is sin(90)? | 1 | basic_trigonometry |
| 58 | Sum of Angles of Polygon | Sum of angles of polygon with 5 sides =  | 540 | sum_of_polygon_angles |
| 59 | Mean,Standard Deviation,Variance | Find the mean,standard deviation and variance for the data[29, 30, 37, 47, 25, 21, 33, 33, 19, 22, 36, 16, 7, 26, 46] | The Mean is 28.466666666666665 , Standard Deviation is 109.71555555555557, Variance is 10.474519347232864 | data_summary |
| 60 | Surface Area of Sphere | Surface area of Sphere with radius = 16m is | 3216.990877275948 m^2 | surface_area_sphere |
| 61 | Volume of Sphere | Volume of sphere with radius 86 m =  | 2664305.1424956126 m^3 | volume_sphere |
| 62 | nth Fibonacci number | What is the 27th Fibonacci number? | 196418 | nth_fibonacci_number |
| 63 | Profit or Loss Percent | Profit percent when CP = 644 and SP = 662 is:  | 2.7950310559006213 | profit_loss_percent |
| 64 | Binary to Hexidecimal | 1001100 | 0x4c | binary_to_hex |
| 65 | Multiplication of 2 complex numbers | (-4+10j) * -14j =  | (140+56j) | multiply_complex_numbers |
| 66 | Geometric Progression | For the given GP [4, 12, 36, 108, 324, 972] ,Find the value of a,common ratio,7th term value, sum upto 11th term | The value of a is 4, common ratio is 3 , 7th term is 2916 , sum upto 11th term is 354292.0 | geometric_progression |
| 67 | Geometric Mean of N Numbers | Geometric mean of 2 numbers 8 and 39 =  | (8*39)^(1/2) = 17.663521732655695 | geometric_mean |
| 68 | Harmonic Mean of N Numbers | Harmonic mean of 3 numbers 70 , 28 and 10 =  |  3/((1/70) + (1/28) + (1/10)) = 20.0 | harmonic_mean |
| 69 | Euclidian norm or L2 norm of a vector | Euclidian norm or L2 norm of the vector[140.27767298648374, 455.13963882440834, 712.0553226043899, 459.3121590782242, 524.4218909490598, 750.5372175572093, 808.8045224974901, 383.6429461786214, 429.4419005181599, 678.4158119220333, 949.0750177704684, 959.5226153129328, 480.3240208778324, 106.9115204040202] is: | 2300.592987768802 | euclidian_norm |
| 70 | Angle between 2 vectors | angle between the vectors [411.42, 822.89, 457.69, 983.28] and [516.87, 275.57, 334.47, 19.0] is: | 0.88 radians | angle_btw_vectors |
| 71 | Absolute difference between two numbers | Absolute difference between numbers 14 and -97 =  | 111 | absolute_difference |
| 72 | Dot Product of 2 Vectors | [-2, 0, -18] . [9, 10, 15] =  | -288 | vector_dot |
| 73 | Binary 2's Complement | 2's complement of 10 = | 10 | binary_2s_complement |
| 74 | Inverse of a Matrix | Inverse of Matrix Matrix([[71, 25, 61], [21, 23, 8], [41, 70, 11]]) is: | Matrix([[-307/12775, 799/2555, -1203/12775], [97/12775, -344/2555, 713/12775], [527/12775, -789/2555, 1108/12775]]) | invert_matrix |
| 75 | Area of a Sector | Given radius, 13 and angle, 322. Find the area of the sector. | Area of sector = 474.88664 | sector_area |
| 76 | Mean and Median | Given the series of numbers [42, 66, 61, 2, 25, 95, 18, 14, 96, 6]. find the arithmatic mean and mdian of the series | Arithmetic mean of the series is 42.5 and Arithmetic median of this series is 33.5 | mean_median |
| 77 | Determinant to 2x2 Matrix | Det([[67, 22], [83, 9]]) =  |  -1223 | int_matrix_22_determinant |
| 78 | Compound Interest | Compound interest for a principle amount of 1159 dollars, 3% rate of interest and for a time period of 9 year is =  | 1512.23 | compound_interest |
| 79 | Decimal to Hexadecimal | Binary of 260= | 0x104 | decimal_to_hexadeci |
| 80 | Percentage of a number | What is 40% of 80? | Required percentage = 32.00% | percentage |
| 81 | Celsius To Fahrenheit | Convert 77 degrees Celsius to degrees Fahrenheit = | 170.6 | celsius_to_fahrenheit |
| 82 | AP Term Calculation | Find the term number 19 of the AP series: 66, 109, 152 ...  | 840 | arithmetic_progression_term |
| 83 | AP Sum Calculation | Find the sum of first 84 terms of the AP series: 59, 110, 161 ...  | 182742.0 | arithmetic_progression_sum |
| 84 | Converts decimal to octal | The decimal number 983 in Octal is:  | 0o1727 | decimal_to_octal |
| 85 | Converts decimal to Roman Numerals | The number 1994 in Roman Numerals is:  | MCMXCIV | decimal_to_roman_numerals |
| 86 | Degrees to Radians | Angle 82 in radians is =  | 1.43 | degree_to_rad |
| 87 | Radians to Degrees | Angle 0 in degrees is =  | 0.0 | radian_to_deg |
| 88 | Differentiation | differentiate w.r.t x : d(sin(x)+7*x^3)/dx | 21*x^2 + cos(x) | differentiation |
| 89 | Definite Integral of Quadratic Equation | The definite integral within limits 0 to 1 of the equation 65x^2 + 91x + 72 is =  | 139.1667 | definite_integral |
| 90 | isprime | 64 | False | is_prime |
| 91 | Binary Coded Decimal to Integer | Integer of Binary Coded Decimal 1 is =  | 4674 | bcd_to_decimal |
| 92 | Complex To Polar Form | rexp(itheta) =  | 15.52exp(i1.83) | complex_to_polar |
| 93 | Union,Intersection,Difference of Two Sets | Given the two sets a={1, 3, 7, 8, 10} ,b={9, 10, 2, 5}.Find the Union,intersection,a-b,b-a and symmetric difference | Union is {1, 2, 3, 5, 7, 8, 9, 10},Intersection is {10}, a-b is {8, 1, 3, 7},b-a is {9, 2, 5}, Symmetric difference is {1, 2, 3, 5, 7, 8, 9} | set_operation |
| 94 | Base Conversion | Convert 44639 from base 10 to base 6. | 542355 | base_conversion |
| 95 | Curved surface area of a cylinder | What is the curved surface area of a cylinder of radius, 46 and height, 69? | CSA of cylinder = 19942.83 | curved_surface_area_cylinder |
| 96 | Perimeter of Polygons | The perimeter of a 12 sided polygon with lengths of [18, 4, 59, 94, 107, 115, 42, 99, 16, 73, 2, 51]cm is:  | 680 | perimeter_of_polygons |
| 97 | Power of Powers | The 14^10^5 = 14^(10*5) = 14^50 | 2024891623976437135118764865774783290467102632746078437376 | power_of_powers |
| 98 | Quotient of Powers with Same Base | The Quotient of 36^8 and 36^10 = 36^(8-10) = 36^-2 | 0.0007716049382716049 | quotient_of_power_same_base |
| 99 | Quotient of Powers with Same Power | The Quotient of 2^8 and 45^8 = (2/45)^8 = 0.044444444444444446^8 | 1.5224388403474453e-11 | quotient_of_power_same_power |
| 100 | complex Quadratic Equation | Find the roots of given Quadratic Equation 4x^2 + 5x + 1 = 0 | simplified solution : ((-0.25, -1.0)), generalized solution : ((-5 + 3)/2*4, (-5 - 3)/2*4) | complex_quadratic |
| 101 | Leap Year or Not | Year 2018  | is not a leap year | is_leap_year |
| 102 | Minute to Hour conversion | Convert 381 minutes to Hours & Minutes | 6 hours and 21 minutes | minutes_to_hours |
| 103 | Decimal to Binary Coded Decimal | BCD of Decimal Number 6496 is =  | 1960 | decimal_to_bcd |
| 104 | Circumference | Circumference of circle with radius 68 | 427.2566008882119 | circumference |
| 105 | Combine Like terms | 9x^4 + 3x^2 + 5x^3 + 5x^1 + 10x^2 | 5x^1 + 13x^2 + 5x^3 + 9x^4  | combine_like_terms |
| 106 | signum function | signum of -831 is = | -1 | signum_function |
| 107 | Conditional Probability | Someone tested positive for a nasty disease which only 1.48% of population have. Test sensitivity (true positive) is equal to SN= 93.80% whereas test specificity (true negative) SP= 90.92%. What is the probability that this guy really has that disease? | 13.43% | conditional_probability |
| 108 | Arc length of Angle | Given radius, 32 and angle, 122. Find the arc length of the angle. | Arc length of the angle = 68.13765 | arc_length |
| 109 | Binomial distribution | A manufacturer of metal pistons finds that, on average, 35.48% of the pistons they manufacture are rejected because they are incorrectly sized. What is the probability that a batch of 11 pistons will contain no more than 4 rejected pistons? | 65.57 | binomial_distribution |
| 110 | Stationary Points | f(x)=2*x^2 + 9*x + 7 | (-9/4,-25/8) | stationary_points |
| 111 | Expanding Factored Binomial | (3x-3)(-1x+2) | -3*x^2+9*x-6 | expanding |
| 112 | Area of Circle | Area of circle with radius 93 | 27182.571428571428 | area_of_circle |