error C2660: 'System::Math::Pow' : function does not take 1 arguments

[Richard Ballin]

Hello All,

I am taking a class using Visual Studio C++ Express 2010 and on one of the first projects i need to use the Math::Pow() function. The book does not do a good job of explaining how to use this. I was able to create the program and calculate simple interest fine with a normal formula however once I needed to calculate compounded interest it required a exponent.

Line 203 of the Code is where the error is.

"error C2660: 'System::Math:: Pow' : function does not take 1 arguments"

I hope this clarifies my issue.
Thanks in advance,
Richard



Formulas used:
Simple Interest = Principal * (1 + (Years * Rate))
Compound Interest = Principal * (1 + Rate)^Years

This is the Line of code that is giving me this error:

 
 // Process data
			 sum = (num1 * (Math::Pow(1 + (num2*.01)),num3));

Here is all of the program.

#pragma once

namespace InterestCalculator {

	using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;

	/// <summary>
	/// Summary for Form1
	/// </summary>
	public ref class Form1 : public System::Windows::Forms::Form
	{
	public:
		Form1(void)
		{
			InitializeComponent();
			//
			//TODO: Add the constructor code here
			//
		}

	protected:
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		~Form1()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::TextBox^  textBoxPrincipal;
	protected: 
	private: System::Windows::Forms::TextBox^  textBoxRate;
	private: System::Windows::Forms::TextBox^  textBoxYears;
	private: System::Windows::Forms::TextBox^  textBoxSimple;
	private: System::Windows::Forms::TextBox^  textBoxCompound;
	private: System::Windows::Forms::Button^  button1;
	private: System::Windows::Forms::Button^  button2;
	private: System::Windows::Forms::Label^  label1;
	private: System::Windows::Forms::Label^  label2;
	private: System::Windows::Forms::Label^  label3;

	private:
		/// <summary>
		/// Required designer variable.
		/// </summary>
		System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		void InitializeComponent(void)
		{
			this->textBoxPrincipal = (gcnew System::Windows::Forms::TextBox());
			this->textBoxRate = (gcnew System::Windows::Forms::TextBox());
			this->textBoxYears = (gcnew System::Windows::Forms::TextBox());
			this->textBoxSimple = (gcnew System::Windows::Forms::TextBox());
			this->textBoxCompound = (gcnew System::Windows::Forms::TextBox());
			this->button1 = (gcnew System::Windows::Forms::Button());
			this->button2 = (gcnew System::Windows::Forms::Button());
			this->label1 = (gcnew System::Windows::Forms::Label());
			this->label2 = (gcnew System::Windows::Forms::Label());
			this->label3 = (gcnew System::Windows::Forms::Label());
			this->SuspendLayout();
			// 
			// textBoxPrincipal
			// 
			this->textBoxPrincipal->Location = System::Drawing::Point(12, 25);
			this->textBoxPrincipal->Name = L"textBoxPrincipal";
			this->textBoxPrincipal->Size = System::Drawing::Size(100, 20);
			this->textBoxPrincipal->TabIndex = 0;
			// 
			// textBoxRate
			// 
			this->textBoxRate->Location = System::Drawing::Point(118, 25);
			this->textBoxRate->Name = L"textBoxRate";
			this->textBoxRate->Size = System::Drawing::Size(100, 20);
			this->textBoxRate->TabIndex = 1;
			// 
			// textBoxYears
			// 
			this->textBoxYears->Location = System::Drawing::Point(224, 25);
			this->textBoxYears->Name = L"textBoxYears";
			this->textBoxYears->Size = System::Drawing::Size(100, 20);
			this->textBoxYears->TabIndex = 2;
			// 
			// textBoxSimple
			// 
			this->textBoxSimple->Location = System::Drawing::Point(158, 51);
			this->textBoxSimple->Name = L"textBoxSimple";
			this->textBoxSimple->Size = System::Drawing::Size(166, 20);
			this->textBoxSimple->TabIndex = 3;
			// 
			// textBoxCompound
			// 
			this->textBoxCompound->Location = System::Drawing::Point(158, 77);
			this->textBoxCompound->Name = L"textBoxCompound";
			this->textBoxCompound->Size = System::Drawing::Size(166, 20);
			this->textBoxCompound->TabIndex = 4;
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(37, 49);
			this->button1->Name = L"button1";
			this->button1->Size = System::Drawing::Size(115, 23);
			this->button1->TabIndex = 5;
			this->button1->Text = L"Simple Interest";
			this->button1->UseVisualStyleBackColor = true;
			this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
			// 
			// button2
			// 
			this->button2->Location = System::Drawing::Point(37, 78);
			this->button2->Name = L"button2";
			this->button2->Size = System::Drawing::Size(115, 23);
			this->button2->TabIndex = 6;
			this->button2->Text = L"Compound Interest";
			this->button2->UseVisualStyleBackColor = true;
			this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
			// 
			// label1
			// 
			this->label1->AutoSize = true;
			this->label1->Location = System::Drawing::Point(12, 9);
			this->label1->Name = L"label1";
			this->label1->Size = System::Drawing::Size(47, 13);
			this->label1->TabIndex = 7;
			this->label1->Text = L"Principal";
			// 
			// label2
			// 
			this->label2->AutoSize = true;
			this->label2->Location = System::Drawing::Point(119, 9);
			this->label2->Name = L"label2";
			this->label2->Size = System::Drawing::Size(30, 13);
			this->label2->TabIndex = 8;
			this->label2->Text = L"Rate";
			// 
			// label3
			// 
			this->label3->AutoSize = true;
			this->label3->Location = System::Drawing::Point(223, 9);
			this->label3->Name = L"label3";
			this->label3->Size = System::Drawing::Size(34, 13);
			this->label3->TabIndex = 9;
			this->label3->Text = L"Years";
			// 
			// Form1
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(341, 115);
			this->Controls->Add(this->label3);
			this->Controls->Add(this->label2);
			this->Controls->Add(this->label1);
			this->Controls->Add(this->button2);
			this->Controls->Add(this->button1);
			this->Controls->Add(this->textBoxCompound);
			this->Controls->Add(this->textBoxSimple);
			this->Controls->Add(this->textBoxYears);
			this->Controls->Add(this->textBoxRate);
			this->Controls->Add(this->textBoxPrincipal);
			this->Name = L"Form1";
			this->Text = L"Form1";
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion
	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 // Declare variables num1 Principal, num2 Rate, num3 Years,
			 double num1, num2, num3, sum;

			 // Read in Data
			 Double::TryParse(textBoxPrincipal->Text, num1);
			 Double::TryParse(textBoxRate->Text, num2);
			 Double::TryParse(textBoxYears->Text, num3);

			 // Process data
			 sum = num1 * (1 + (num3 * (num2*.01)));

			 // Display results
			 textBoxSimple->Text = sum.ToString();
			 }
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
			 // Declare variables num1 Principal, num2 Rate, num3 Years,
			 double num1, num2, num3, sum;

			 // Read in Data
			 Double::TryParse(textBoxPrincipal->Text, num1);
			 Double::TryParse(textBoxRate->Text, num2);
			 Double::TryParse(textBoxYears->Text, num3);

			 // Process data
			 sum = (num1 * (Math::Pow(1 + (num2*.01)),num3));

			 // Display results
			 textBoxCompound->Text = sum.ToString();

		 }
};
}

[tdlr]

sum = (num1 * (Math::Pow(1 + (num2*.01),num3)));

fix'd. (there was one closing bracket misplaced)

[Richard Ballin]

Thank you so much... I have no idea how many times I went over this looking for little mistakes like that. Even with the IDE matching brackets I still did not find that.

This has solved my issue.

Thank you again.
Richard