Create calculate.cpp

Author: Quincy

4.0/calculate.cpp

@@ -0,0 +1,80 @@
+#include <iostream>
+#include <string>
+#include <sstream>
+#include <cmath>
+#include <vector>
+#include "calculate.h"
+
+std::ofstream writeHistory;
+
+std::string calculate::add(double numA, double numB)
+{
+	double add = numA + numB;
+	std::stringstream sadd;
+	sadd << "The sum of the two numbers are ";
+	sadd << add;
+	sadd << std::endl;
+	std::string fina = sadd.str();
+	writeHistory << numA << " + " << numB << " = " << add<<std::endl;
+	return fina;
+}
+std::string calculate::subtract(double numA, double numB)
+{
+	double subtract = numA - numB;
+	std::stringstream ssub;
+	ssub << "The difference of the two numbers are ";
+	ssub << subtract;
+	ssub << std::endl;
+	std::string fins = ssub.str();
+	writeHistory << numA << " - " << numB << " = " << subtract << std::endl;
+	return fins;
+}
+std::string calculate::multiply(double numA, double numB)
+{
+	double multiply = numA * numB;
+	std::stringstream smul;
+	smul << "The product of the two numbers you put in are ";
+	smul << multiply;
+	smul << std::endl;
+	std::string finm = smul.str();
+	writeHistory << numA << " * " << numB << " = " << multiply << std::endl;
+	return finm;
+}
+std::string calculate::divide(double numA, double numB)
+{
+	double divide = numA / numB;
+	std::stringstream sdiv;
+	sdiv << "The dividend of the two numbers you put in are ";
+	sdiv << divide;
+	sdiv << std::endl;
+	std::string find = sdiv.str();
+	writeHistory << numA << " / " << numB << " = " << divide << std::endl;
+	return find;
+}
+std::string calculate::power(double numA, double numB)
+{
+	double power = pow(numA, numB);
+	std::stringstream spow;
+	spow << numA;
+	spow << " to the power of ";
+	spow << numB;
+	spow << " is ";
+	spow << power;
+	spow << std::endl;
+	std::string finp = spow.str();
+	writeHistory << numA << " ^ " << numB << " = " << power << std::endl;
+	return finp;
+}
+std::string calculate::square(double numA, double numB)
+{
+	double square = sqrt(numA);
+	std::stringstream ssqu;
+	ssqu << "The square root of ";
+	ssqu << numA;
+	ssqu << " is ";
+	ssqu << square;
+	ssqu << std::endl;
+	std::string fins = ssqu.str();
+	writeHistory << "Square root of: " << numA << " = " << square << std::endl;
+	return fins;
+}