Ask me a question or two about particular math notations and I will try to answer it.
I'll just go ahead and explain indices and summation in the meantime already because these are so super-common that you basically cannot read math things without knowing them. I will denote things LaTeX-like, that is subscript with _ and superscript with ^, if multiple things go in there, they will be enclosed in {}.
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First: indices, usually written as sub-script, are super-common. They might be separated by a comma if there are more than one (but they do not have to be. In that case, you need to check which variables make sense as indices.) Usually variables are just single letters and not superWordyDescriptionsOfThingsBecauseCodeCompletionIsDifficultWithPenAndPaper.
Examples:
a_i is like a[i]
m_{ij} is element at position i, j in matrix M, i.e. ~ M[i][j]
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Summation is also very common, denoted via symbol Σ . That's the upper-case greek letter "sigma". This one will have a few things accompanying it: below it is a variable name and most likely an assignment of a value to it. That's the first value that the variable will take. Above, the last value the variable should have. The expression behind the symbol is evaluated for each of these values and all integers in between and summed up. (It might also appear with just the varaible name below it, in which case it means: sum over all values of the variable).
Example: Summing up the squares of all integers from 3 to 6
Multiplication: there is also a similiar one for multiplication that I will include because it is so easily explained when having discussed summation already. It's denoted by the greek upper-case letter Π (Pi)
Π works like Σ but the results of the expressions are multiplied instead.
Example: Π_{i=3}^6 i^2 = 3^2 * 4^2 * 5^2 * 6^2
Pseudocode:
for(i = 3; i <= 6; i++)
product *= i^2
This is only meant to help you translate a few formulas into forms you might easier work with. Following a university math course for a single semester or maybe two might get you a long way as well.
I'll just go ahead and explain indices and summation in the meantime already because these are so super-common that you basically cannot read math things without knowing them. I will denote things LaTeX-like, that is subscript with _ and superscript with ^, if multiple things go in there, they will be enclosed in {}.
---
First: indices, usually written as sub-script, are super-common. They might be separated by a comma if there are more than one (but they do not have to be. In that case, you need to check which variables make sense as indices.) Usually variables are just single letters and not superWordyDescriptionsOfThingsBecauseCodeCompletionIsDifficultWithPenAndPaper.
Examples:
a_i is like a[i]
m_{ij} is element at position i, j in matrix M, i.e. ~ M[i][j]
---
Summation is also very common, denoted via symbol Σ . That's the upper-case greek letter "sigma". This one will have a few things accompanying it: below it is a variable name and most likely an assignment of a value to it. That's the first value that the variable will take. Above, the last value the variable should have. The expression behind the symbol is evaluated for each of these values and all integers in between and summed up. (It might also appear with just the varaible name below it, in which case it means: sum over all values of the variable).
Example: Summing up the squares of all integers from 3 to 6
Σ_{i=3}^6 i^2
(Properly rendered here: https://wikimedia.org/api/rest_v1/media/math/render/svg/a60f... )
Pseudocode for this is:
---Multiplication: there is also a similiar one for multiplication that I will include because it is so easily explained when having discussed summation already. It's denoted by the greek upper-case letter Π (Pi)
Π works like Σ but the results of the expressions are multiplied instead.
Example: Π_{i=3}^6 i^2 = 3^2 * 4^2 * 5^2 * 6^2
Pseudocode:
This is only meant to help you translate a few formulas into forms you might easier work with. Following a university math course for a single semester or maybe two might get you a long way as well.