Graphics Calculator - Documentation

Overview

The Graphics Calculator (calculator.html) is the original Romasm function plotting tool. It allows you to plot Romasm functions with customizable graph bounds and includes support for both Cartesian and polar coordinate plotting.

Note: For a more full-featured calculator experience, see the Romasm Calculator.

Features

Function Plotting

Plot functions defined in Romasm assembly:

Enter Romasm code for f(x)
Input: R0 = x (scaled by 100)
Output: R0 = f(x) (scaled by 100)
Functions are evaluated at multiple points and plotted

Graph Modes

Switch between different plotting modes:

Function Mode: y = f(x) - Standard Cartesian plotting
Polar Mode: r = f(θ) - Polar coordinate plotting

Customizable Bounds

Set graph window settings:

X Min/Max - Horizontal range
Y Min/Max - Vertical range
Step Size - Resolution of plotting
Auto-adjustment for polar curves

Preset Functions

Quick-load preset functions:

Basic: x², x³, sin(x), cos(x)
Polar: Rose curves, cardioid, spiral
Advanced: Exponential, logarithmic

Using the Graphics Calculator

Step 1: Select Mode

Choose "Function (y=f(x))" or "Polar (r=f(θ))" from the dropdown.

Step 2: Enter Function

Type or select a Romasm function. For example, to plot y = x²:

LOAD R1, R0
MUL R0, R1
LOAD R1, 100
DIV R0, R1
RET

Step 3: Set Bounds

Configure X Min/Max, Y Min/Max, and Step Size.

Step 4: Plot

Click "Run" to plot the function.

Polar Plotting

In polar mode, functions define r as a function of θ:

Input: R0 = θ in degrees (scaled by 100)
Output: R0 = r (scaled by 100)
Automatically converts to Cartesian: x = r×cos(θ), y = r×sin(θ)
Handles negative r values correctly
Auto-adjusts graph bounds based on max r