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Et harum scientiarum porta et clavis est Mathematica

"Mathematics is the door and key to the sciences" - Roger Bacon (~1214-1292)

$$ \sum_{n=1}^\infty\frac{1}{n^z} = \prod_{p \text{ prime}} \frac{1}{1-p^{-z}} $$


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revised Finding the parameter that makes real part of an eigenvalue of a matrix 0
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reviewed Reopen Is there a PrimeQ whose accuracy guarantee you can adjust?
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comment How do I count a number of primes(say smaller than N) that does not contain 5?
Prime[ Range[ PrimePi[n]]] finds all primes <= n.
8h
reviewed Reopen How to combine more locations (GPS coordinates inside one city) with Google map?
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reviewed No Action Needed Manipulate curve together with data list
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reviewed No Action Needed How do I count a number of primes(say smaller than N) that does not contain 5?
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reviewed Reviewed DSolve will not apply assumption `m ∈ Integers`
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revised DSolve will not apply assumption `m ∈ Integers`
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comment How can I find a root of my transcendental equation near a certain point?
Take a look also at How do I solve this equation? and Can Reduce really not solve for x here?.
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comment How can I find a root of my transcendental equation near a certain point?
E.g. Solve[E^(-x^2) == 1 - Cos[x] && 0 <= x <= 1, x] yields {{x -> Root[{1 - E^#1^2 + E^#1^2 Cos[#1] &, 0.94194408148019155746}]}}. See e.g. How do I work with Root objects?
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reviewed Reject suggested edit on Can TreeForm be displayed “sideways”?
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reviewed Reject suggested edit on Horizontal Tree Layout?
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reviewed Reject suggested edit on How do I upload a graph as an adjacency list and find the betweenness centrality?
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reviewed Looks Good How write this Function with many arguments?
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reviewed No Action Needed Graphing a piecewise function with very different time scales?
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reviewed Reviewed Solve a system of M equations without specifying M
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revised Solve a system of M equations without specifying M
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reviewed Reviewed How do I upload a graph as an adjacency list and find the betweenness centrality?
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revised How do I upload a graph as an adjacency list and find the betweenness centrality?
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reviewed Reject suggested edit on Append subscript to variable name