Pre vs WabunMorsePro

Auto-renewable subscription Pre-Algebra Fundamentals comes with a 7-day free trial. After this you will be charged $4.99 a month and you can cancel anytime. Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscription by visiting your iTunes Account Settings. Privacy policy: https://www.mathgalaxy.com/FQ3_Menu/FQ3_PreAlgebra_Privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Math Galaxy Pre-Algebra Fundamentals is like having an interactive textbook, with explanations, practice, games, and videos that cover all topics found in middle school math: decimals negative numbers (integers) absolute value exponents roots scientific and metric notation and operations order of operations factors and prime numbers 1 & 2-step equations systems of equations slopes and linear equations ratios & proportions similar figures direct & inverse variation percents geometry, including length, area, volume, weight, lines, angles & polygons pythagoras & right triangles basic trigonometry graphs frequency tables, mean (average) & median stem-and-leaf plots box-and-whisker plots probability patterns and sequences The concepts are presented in bite-size pieces and there is an unlimited number of practice problems, with numbers chosen randomly. By solving problems students earn robots to use in a maze game called the Labyrinth.

Wabun is Japanese KANA based Morse-Code. Only KANA can be learned. You are able to study the Wabun Morse codes by steps. There is a random generation function, you can practice receiving of Wabun Morse. You can also freely select the volume, playback speed, and playback tone. 【additional function】 1) Reverb function 2) Noise function 3) Repeat function (Endless & Time specification) 4) Added a function to switch between hardware and software for keying waveforms. 5) Added accurate / fuzzy function as a keying method 6) Added adjustment function (10-step adjustment) for high-speed sound training. 7) Added omit function ヰ and ヱ of Random Listen mode 8) Added buffer mode function of Code Study mode 9) A function that allows you to select the Morse code generation waveform from "sine waveform, triangular waveform, rectangular wave system, and sawtooth waveform" The "reverb function" simulates the reverberation of the test site. The "noise function" mutes the noise during actual communication. "Fuzzy keying" is a function that reproduces a fluctuating signal like a vertical key that a person hits. Even if there is a little fluctuation, the reception difficulty will go up sharply. Supported the QSB function.