Hi I am trying to write a code that finds approximations of sine and cosine using the equations below with a given value of theta in degrees basically as a novice programmer i am having trouble setting upa a while loop for the expansions. Also can you guys please quote sources(books,web pages, etc.) for a beginner programmer in python for syntax and basic concepts. cos(x)= 1- x2/2! + x4/4! - x6/6! + .. sin(x)= x - x3/3! + x5/5! - x7/7! + .. Thanks in advance. |
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Hello everyone. I'm working on a project that acts as a function generator to output a sine wave. The program also outputs an excel file with all of the data points so one can plot the points. For some reason, when I add noise, the graph does not look right. Can anyone tell me why? I appreciate the help. Here is my code: #include "stdafx.h" #include <stdio.h> #include <tchar.h> #include <iostream> #include <math.h> #include <conio.h> #include <iomanip> #include <time.h> #include <stdlib.h> #include <dos.h> using namespace std; void lab_7 (void) { srand((unsigned)time(0)); // declarations FILE *fptr; char fileName[50] = ""; double … |
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Hi, I am developing some code to run on hardware and I am using the sin() and cos() functions inside the standard math.h many times, which slows the program down dramatically. I was wondering if there is a way to "approximate" the sine and cosine of a value (angle is between 0 and 2pi). Apparently there is a way to do it using look up tables but I don't really know how to create one? I would like to do it using just basic arithmetic operators, no math.h functions. Is there a simple way to compute the sine and cosine … |
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