I'm trying to make a simple calculator for circuits. And I can not figure out how to take the answer and limit to only like two numbers after the decimal place.

The number underlined is wat im trying to limit the size so its not a long repeating with and exponent. I would like it to be "186.66" instead.

[Braden]

%{
Circuit Calculator
%}

problem = input('What type of problem are you trying to solve?\n1 - Resistor Calculator\n2 - Current Calculator');

%This one solves for the total resistance on a curcuit
if problem == 1
    RAmount = input('How many resistors are there?');
    type = input('What type of curcuit is it? \n1 - Parallel \n2 - Series');
    R1 = input('What is the value of R1?');
    R2 = input('What is the value of R2?');

    if RAmount > 2
        R3 = input('What is the value of R3?');
    end
    if RAmount > 3
        R4 = input('What is the value of R4?');
    end
    if RAmount > 4
        R5 = input('What is the value of R5?');
    end

    if type == 1 
        if RAmount == 2
            TotalResistance = 1 / ((1/R1) + (1/R2));
        elseif RAmount == 3 
            TotalResistance = 1 / ((1/R1) + (1/R2) + (1/R3));
        elseif RAmount == 4 
            TotalResistance = 1 / ((1/R1) + (1/R2) + (1/R3) + (1/R4));
        elseif RAmount == 5 
            TotalResistance = 1 / ((1/R1) + (1/R2) + (1/R3) + (1/R4) + (1/R5));
        end 
    end

    if type == 2
        if RAmount == 2 
            TotalResistance = R1 + R2;
        elseif RAmount == 3 
            TotalResistance = R1 + R2 + R3;
        elseif RAmount == 4
            TotalResistance = R1 + R2 + R3 + R4;
        elseif RAmount == 5 
            TotalResistance = R1 + R2 + R3 + R4 + R5;
        end 
    end

    fprintf ('The total resistance is %d \n', TotalResistance);
end

if problem == 2 
    voltage = input('What is the voltage?');
    R1 = input('What is the value of the resistor?');

    Current = voltage / R1;
    
    if Current < 1
        Current = Current * 1000;
        round( Current * .01);
        fprintf ('The total current is %d mA', Current);
    else
        fprintf ('The total current is %d A', Current);
    end
end

fprintf()

[Braden]

There is code if it helps.

Answer 1

[Mike Croucher]

This page on the documentation will help explain the details: Formatting Text

TotalResistance = 186.66;
fprintf("The total resistance is %.2f\n",TotalResistance)

The total resistance is 186.66

Answer 2

[ScottB]

"format bank" will also work if you want to places right of the decimal