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Miko
Miko
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I need to solve a definite integral that's a part of a larger system I have in Mathematica, but I can't use a solver to do it (something weird is happening when I use NIntegrate[...] and Integrate[...] with this solver, so to have more control I want to write it out myself). I don't know how to do this and just need an example to go on. How would you write a code that solves $\int Sin(y)dy$ (integral is from 0 to x)? The method it uses for solving doesn't really matter, although my go-to would be the Riemann sum. I feel like this should be simple, but I can't figure out howneed the code to get startedbe hand written though and not use an already existing solver like NIntegrate[].

I need to solve a definite integral that's a part of a larger system I have in Mathematica, but I can't use a solver to do it (something weird is happening when I use NIntegrate[...] and Integrate[...] with this solver, so to have more control I want to write it out myself). I don't know how to do this and just need an example to go on. How would you write a code that solves $\int Sin(y)dy$ (integral is from 0 to x)? The method it uses for solving doesn't really matter, although my go-to would be the Riemann sum. I feel like this should be simple, but I can't figure out how to get started.

How would you write a code that solves $\int Sin(y)dy$ (integral is from 0 to x)? The method it uses for solving doesn't really matter, although my go-to would be the Riemann sum. I need the code to be hand written though and not use an already existing solver like NIntegrate[].

Post Closed as "Needs details or clarity" by Daniel Lichtblau, Feyre, MarcoB, m_goldberg, user31159
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Miko
Miko
  • 11
  • 2

How do I write an integral solver

I need to solve a definite integral that's a part of a larger system I have in Mathematica, but I can't use a solver to do it (something weird is happening when I use NIntegrate[...] and Integrate[...] with this solver, so to have more control I want to write it out myself). I don't know how to do this and just need an example to go on. How would you write a code that solves $\int Sin(y)dy$ (integral is from 0 to x)? The method it uses for solving doesn't really matter, although my go-to would be the Riemann sum. I feel like this should be simple, but I can't figure out how to get started.